FOREWORD
Through instructions from the Supreme Commander for the Allied Powers to the Japanese Government, 12 October 1945, subject; Institution for War Records Investigation, steps were initiated to exploit military his torical records and official reports of the Japanese War Ministry and Japanese General Staff. Upon disso - ,-. lution of the War Ministry and the Japanese General Staff, and the transfer of their former functions to the Demobilization Bureau, reseorch and compilation continued and developed into a series of historical monographs. The paucity of original orders, plans and unit journals, which ore normally essential in the prepa ration of this type of record, but which were largely lost or destroyed during field operations or bombing raids, rendered the task of compilation most difficult; particularly distressing has been the complete lack of official strength reports, normol in AG or G3 records. However, while many of the important orders, plans, and estimates have been reconstructed from memory and therefore are not textually identical with the originals, they ore be lieved to be generally accurate and reliable. THE IMPERIAL JAPANESE NAVY IN WORLD WAR II
A Graphic Presentation of the Japanese Naval Organization and List of Combatant and Non-Combatant Vessels Lost or Damaged in the War
Prepared by
Military History Section 7 Special Staff , General Headquarters, Far East Command February 1952 TABLE OF CONTENTS
IMPERIAL JAPANESE NAVY CHAIN OF COMMAND Frontispiece PART I ORGANIZATION OF THE FLEETS Page COMBINED FLEET FIRST FLEET J-3 SECOND FLEET_ .3-5 THIRD FLEET _5-8 FOURTH FLEET_ _9-l2 FIFTH FLEET 13-14 SIXTH FLEET .15-17 SEVENTH FLEET. .17 EIGHTH FLEET_ .18-21 NINTH FLEET .21 ATTACHED UNITS. 22-27 PART H ORGANIZATION OF THE AREA FLEETS SOUTHWEST AREA FLEET .28-39 SOUTHEAST AREA FLEET .40-41 NORTHEAST AREA FLEET ,42 CENTRAL PACIFIC AREA FLEET, .43 TENTH AREA FLEET .44 CHINA AREA FLEET A 5 - 47
PART JH ORGANIZATION OF THE NAVAL AIR FLEETS FIRST AIR FLEET .48-50 SECOND AIR FLEET THIRD AIR FLEET .51-52 FIFTH AIR FLEET .53 TENTH AIR FLEET .54 ELEVENTH AIR FLEET__ .55-56 TWELFTH AIR FLEET__ _56-57 THIRTEENTH AIR FLEET_ .58 FOURTEENTH AIR FLEET, .58 PART ORGANIZATION OF THE GENERAL ESCORT COMMAND .59-65 GENERAL ESCORT COMMAND 62-65 FIRST ESCORT FLEET _
PART Y. ORGANIZATION OF THE SUBMARINE FORCES. 66-99 PART 3ZE ORGANIZATION OF NAVAL SHIP DIVISIONS DESTROYER DIVISIONS .100-105 SUBCHASER DIVISIONS .106-1 10 MINESWEEPER DIVISIONS— .111-115 GUNBOAT DIVISIONS .116-1 18 TRANSPORT DIVISIONS J 19 COAST DEFENSE GROUPS^ .120-121 TORPEDO BOAT DIVISIONS. .121
PART 1ZEL ORGANIZATION OF THE NAVAL AIR GROUPS AND AIRFIELD UNITS. .122-170 PART MONTHLY LOSSES OF COMBATANT AND NON-COMBATANT VESSELS DECEMBER 1941 TO DECEMBER 1943 J7I-195 JANUARY 1944 TO DECEMBER 1944 .196-2 18 JANUARY 1945 TO AUGUST 1945 .219-240
PART CHRONOLOGICAL SUMMATION OF JAPANESE SUBMARINE LOSSES, 241-247 APPENDIX ALPHABETICAL LIST OF COMBATANT, NON-COMBATANT AND CONVERTED VESSELS (A) COMBATANT VESSELS .248-256 (B) NON-COMBATANT AND CONVERTED VESSELS. 257-279 PREFACE
Monograph No. 116, The Imperial Japanese Navy in World War H^ one of the Japanese Operational Monograph Series covering operations of the Japanese Army and Navy during the period 1941-1945, is intended primarily as a reference for research and analysis, specifically in connection with other volumes in the series, and does not pur port to be complete in itself. Initially prepared in Japanese by former officers of the Japanese IMavy under the supervision of the 2d Demobilization Bureau (Navy), the material was translated into English by the Allied Translator and Interpreter Service, General Headquarters, Far Eost Command, and edited for clarity, coherence, and accuracy by the Japa nese Research Division, Military History Section, General Headquarters, Far East Command. The chief sources used in compilation of this document included: Greater East Asia Imperial Japa nese Navy Wartime Organi2ation, original and revisions, issued by the Chief of the Navy General Staff, I June 1945; Battle Lessons, compiled by the Yokosuko Air Group; wartime diaries, battle reports, and Summa ries of Merit of various units and ships, as submitted to the Navy Ministry and IMavy General Stoff; documents ond reports of the Civil Merchant Marine Committee and individual ship owners; wartime documents and radio messages available at the 2d Demobilization Bureau Liquidation Office; and interrogations, statements, and private records of personnel concerned. In many instances material was either lacking altogether or consisted of mere scraps, resulting in a certain amount of inaccuracy and incompleteness in some portions of the report. The repori has been checked against all available Japanese sources, but has not been compared with documents or material from other sources. To accomplish the latter would have involved a considerable amount of time, delaying publication of the monograph still further. The graphic presentation originally used in compiling the document in Japanese was carried over into its translated form as the simplest and most accurate method of depicting the information. That portion of Monograph 116 pertaining to Japonese shipping losses (Parts inn and JK ) is not intended as a duplication of information in Japanese Naval and Merchant Shipping Losses During World War U by All Causes, prepared by the Joint Army-Navy Assessment Committee and published by the United States Department of the Navy in February 1947. The latter volume lists only those vessels of 500 or more gross tons, while this document lists all vessels, regardless of size. In comparing the two studies, information in this document pertaining to the names of the ships and tonnage should be accepted, while information in the U.S. Navy publication as to damage or sinking and the location of the strike probably will be more accurate, since, although the ship owners were conversant with the names and sizes of their ships, their information covering the exact location and time of loss was not complete. Thus, many ships listed as missing in this report no doubt will be indicated as sunk in the U. S. Navy vol ume. This document supplements others in the Japanese Operational Monograph Series, particularly those pertaining to operations of the Japanese Navy, of which the following ore only a few: Monographs No. 79 through 102, covering naval operations in Pearl Harbor, the Philippines, Okinawa, New Guinea, the Aleutians, Mid way, Iwo Jima, the Netherlands East Indies, and other areas; Monographs No. 105 through 125, covering naval operations against Soviet Russia, Malaya, Borneo, and the defense of the Japanese homeland, as well as naval communications ond submarine activities. Certain number of these documents are already on file in the Office of the Chief of Military History, Department of the Army; the remainder, as yet unfinished, will be forwarded there upon completion. The majority of the monographs are typewritten,' difficulties inherent in reproducing the charts in this monograph in any quantity necessitated that it be printed. PART I
ORGANIZATION OF THE FLEETS NOTE
Part I is primarily concerned with the organization of Fleets with numerical designations. The organizations of the First to Fourth Southern Expeditionary Fleets inclusive, which should be categorically listed in Part I , have been noted in Part III under the Southwest Area Fleet.
Ships and naval units which were under the direct command of the C-in-G of the Combined Fleet were placed under the heading of Combined Fleet, as were the attached units. The Combined Fleet, in its full sense, actually encompassed all the Fleets listed in Parts I, IT and M as well as the directly assigned and attached units.
The First Mobile Fleet, not graphically shown in any Part of this volume, was composed of the Second and Third Fleets and existed as such from I Mar to 15 Nov 44 ,
In the following charts, the double horizontal lines represent the active tour of the naval units which comprised each Fleet and the single horizontal lines represent the breakdown of each naval unit. Changes in the organiza tion ore noted as they occurred with dates in parenthesis. CHAIN OF COMMAND OF THE IMPERIAL JAPANESE NAVY (From 8 December 1941 to 15 August 1945)
IMPERIAL GENERAL HEADQUARTERS
NAVY GENERAL COMMAND (Established 25 Apr 45)
SOUTHEAST SOUTHWEST F I RST SECOND YOKOSUKA KURE MAIZURU SASEBO PORT ARTHUR NAVAL GUARD AREA FLEET AREA FLEET AIR FLEET AIR FLEET NAVAL DISTRICT NAVAL DISTRICT NAVAL DISTRICT NAVAL DISTRICT DISTRICT 29 May 45- 29 May 45- I Jul 43 - 15 Jun 44 - Deactivated 15 Aug 45 15 Aug 45 15 Feb 44 20 Jul 44 15 Jon 42 1 1 ! 1 I 1 ! ELEVENTH EIG HTH THIRD SOUTHERN FIRST CHINA SECOND CHINA THIRD CHINA HAINAN GENERAL ESCORT FIRST ESCORT OSAKA CHINHAE OMINATO TAKAO MAKO AIR FLEET FLEET EXPEDITIONARY EXPEDITIONARY EXPEDITIONARY EXPEDITIONARY NAVAL GUARD COMMAND FLEET NAVAL GUARD NAVAL GUARD NAVAL GUARD NAVAL GUARD NAVAL GUARD FLEET FLEET FLEET FLEET DISTRICT DISTRICT DISTRICT DISTRICT DISTRICT DISTRICT 29 May 45 - 29 May 45" 29 May 45 - Deactivated Deactivated 15 Nov 43 - 10 Dec 44 Deactivated 15 Aug 45 15 Aug 45 15 Aug 45 20 Aug 43 10 Apr 42 I5 Aug 45 15 Aug 45 Org 15 Jon 42 1 Nov 4 2
| COMBINED FLEET |
NORTHEAST SOUTHEAST SOUTHERN SOUTHWEST FIRST SOUTHERN SECOND SOUTHERN THIRD SOUTHERN CENTRAL PACIFIC TENTH FIRST FIRST FIRST AREA FLEET AREA FLEET EXPEDITIONARY AREA FLEET EXPEDITIONARY EXPEDITIONARY EXPEDITIONARY AREA FLEET AREA FLEET MOBILE FLEET AIR FLEET FLEET FLEET FLEET FLEET FLEET To 14 Jul 42; 5 Aug 43- 24 Dec 42 - Deactivated 10 Apr 42- 3 Jan 42- 10 Mar 42- 3 Jan 42- 4 Mar 44- 5 Feb 45- I Mor 44- 15 Feb- 10 Aug 44; Deactivated 5 Dec 44 29 May 45 3 Jon 42 29 May 45 10 Apr 42 10 Apr 42 IO Apr 42 18 Jul 44 15 Aug 45 15 Nov 44 8 Moy- 15 Jun 45 25 Feb 44
FIRST SOUTHERN FIRST SECOND SECOND TWELFTH ELEVENTH FOURTEENTH FIRST SOUTHERN EXPEDITIONARY AIR FLEET SECOND AIR FLEET FLEET AIR FLEET AIR FLEET AIR FLEET FLEET FLEET EXPEDITIONARY To I Mar 44; 10 Apr 42- 10 Aug 44- FLEET 5 Aug 43- 24 Dec 42 20 Jul 44- 15 Nov 44 5 Feb 45 8 May 45 4 Mar 44- 5 Feb 45- I Mar 44 5 Dec 44 29 May 45 15 Nov 44 20 Apr 45 18 Jul 44 15 Aug 45 I5 Nov 44
SECOND SOUTHERN SECOND THIRD THIRD FIFTH EIGHTH FOURTH SECOND SOUTHERN THIRD EXPEDITIONARY AIR FLEET AIR FLEET FLEET FLEET FLEET FLEET EXPEDITIONARY FLEET FLEET To 10 Mar 42 ; FLEET 10 Apr 42- 15 Nov 44 14 Jul 42 5 Aug 43- 24 Dec 42- 4 Mar 44- 5 Feb 45- I Mar 44 10 Jul 44- 5 Feb 45 8 Jon 45 15 Aug 45 I Mar 44 5 Dec 44 29 May 45 18 Jul 44 15 Aug 45 15 Nov 44
THIRD SOUTHERN THIRTEENTH NINTH FIFTH FOURTH EXPEDITIONARY AIR FLEET THIRTEENTH FLEET AIR FLEET FLEET FLEET AIR FLEET To 4 Mar 44, tO Apr 42- 20 Sep 43- 10 Feb 45- 18 JuI 44 15 Nov 43- 5 Feb 45 29 May 45 5 Feb 45 15 Aug 45 15 Aug 45 25 Mar 44 15 Aug 45
FOURTH SOUTHERN FIFTH TENTH FIFTH EXPEDITIONARY FLEET AIR FLEET FLEET FLEET To 30 Nov 43- 5 Dec 44- I Mar 45 - 5 Aug 43 10 Mar 45 5 Feb 45 15 Aug 45
NINTH NOTE ELEVENTH SI XTH FLEET The Navy General Command was established to unify the tactical command over all the AIR FLEET FLEET fleets as well as the General Escort Command and the naval districts. Admiral Soemu To 25 Mar 44-- Toyoda, C in C of the Combined Fleet, wos appointed Chief of the Navy Generol Com- 24 Dec 42 10 Jul 44 mand {concurrently). On 29 May 45, he was succeeded by Vice Admiral Jisaburo Ozawa to fill the concurrent role. With the advent of this appointment, the situation arose whereby the C in Cs1 of the Southwest and Southeast Area Fleets outranked Ozawa as TWELFTH SEVENTH AIR FLEET far as seniority was concerned. Inevitably, these two Area Fleets were removed from FLEET 18 May-5 Aug 43 i the Combined Fleet and placed under the direct command of Imperial General Head 5 Dec 44- 10 Apr 45 quarters. 15 Aug 45 15 Aug 45
Inclusive dates in each box indicate the respective unit's position in the chain of com mond for that period. Detached, transferred or reassigned units are repeated and placed in EIGHTH FLEET their proper positions for the period designated. In box where no date is entered, the unit existed in that position throughout the war. 14 Jul 42 24 Dec 42 1942 UNIT 1941 1943 1944 1945 DESIGNATION D"5C -TAN FEB MAE MAY JUN JUL AUG SEP OCT ROV DECJAN FEB MAE APR MAY JOT JTJL AUG SEP OCT NOY DBCJAN FEB MAR APE MAY JON JOT, AUG SEP OCT NOV DEC loniDinea 415 AUG) OYO:>O ((4)-i(5) TJ 1stBatt le sh 1 p Dilifaomt ined Fleel •(15)' •o Se 2d Battle STP" 325) neao tivat •(25) To C smb in s d Fl set HYO3A < •<25) To 3ombiied Jleet 2d FTJSO Battleship Division YAMASHIEO •(25) .NlGATO •(25) To lBt Battlesli p DLv./Se Pleet .MJTSTT )Eemi red 3d Battle hip Hi vis .on KONGO To Second Flee Battleshi p HAEI3RA First Division Fleet KIETSHTMA. To Uth Bittleship Fleet HIEI 6th Cruis r Division (10) Dsacti rated AOBA (10) l o KUSS Nan. Dist. 6th Cruiser KTNUGASA 9th Cruis r Di-'ision =(20) Deactivated 9th Cruiser KITAKAMI •(£0)1 Division Combined lleet 01 •(20)/ 1st Destri quad:'on lifth ABUKDVtA , XI) To Stuadron/Fifth F eet 1st 6th Destr; ver Divls •(l)To Mth Ibestrciyer ! quedron/ir •s t leet Destroyer 17th Dest' Divi Ion Squadron (10) Tp Des roye: Squidron/Flrs i Air Fleqt 24. ,h De troy«rDlv, (10) KI4) T Ed Destroyer 5quadroin/ : Fleet oyer 21st Dest: Divl Ion - 1 UNIT 1941 1942 1943 1944 1945 DESIGNATION DEC JAN FSB MAR APE MAY JUN JUT AUG SEP OCT ROT OTCJAN TEB MAR APR MAT TONJOL AOG SEP OCT NOV DEC JAN FEB MAR A ^ MAT JON JUL AUG SEP OCT NOV EEC JAN FSB MAR APR MAY JON JOL AUG 3d Carrie • r>ii ision 3d I) De activate< Carrier HOF3HO & Zrrao Division HTC Fir eet MIKAZOKI i YT3!AZE st ?] llj SH1NSH0 Ifl IBU !0GAM First I? ©21 >ved n "(10) To 7 th Ct rrie P Dir/Thl i rd ?: eet (30 50 TOSH Fleet —420) To 1irst Air Flee (30: To Ssoon 1 Destroy r Sl/Se( ond Flee HO To 5 'St i .eet Attached ••••• —(20) th Cirrl( tr Dis/?i: ir ? hZUK st E joor1 Div. hwes frl Y UCUMC 1 Tre lafiro ••••• ^20) TO 1 /Sou" t Ar ?a F"eet I) ToKOR inic g Sqi n .TDK AZE To *irst Air Flee "DMO Air Jrou ( I) To 50 th kir Flo Alls /Thi rd F eet (Combined Ties tl (5 Irat Mobi Le ?: eet' Com ine( Fie 1 Deac .iva' e d 4th Cruis sr Division Deac .ivat ed ATAGO ft M LYA 4th To C moil sd F leet Cruiser Division TAKAO • To 5 .h Ciuise • Dii./Second ; 'lee- To S Fie 3t fTTfnrAT . —05) To C tnbir ed F leet 5th Cruis. >r Pi pn HAGURO & '[TOKO 5th 7 J 0 So ithM st Area : lee Cruiser To 2 .st Cruis 3r D V,/Fi fth fleet AKAO (15)- ^^^^ Division I tMAN ) (2I> =!• TOK 3 (21)^^^^ wj KtJRlS Triinin g SqlacLn n :D TC 7th Cruis IT D i 7-isi >n Dea( tiva ted 7th HI) MOGAMI S-. 1 K LULSNO & TOE Cruiser To ' •hire Flei it 11 y/Se s ond Fle< t "1141, To ! tb C ruis ir DJ Tivision SUZUYA ft : 'TMAN0 A Second 11 ?VW & CH To Combined fleel Fleet 8th 8th Cruis' ir Di 7isi >n Cruiser TONS & CKKTMA To l'hird Fle« t Division 1 Bat tiesilipD: visi I Bctii atec 3d )NG0 Battleship (11? >To Thlr 1 Fl Lst 1sattj BBhi ) Di^iaio 1 li = =(10) Tteaot ivat i& Deec iwte IAGA XJ [IV—-(10)1 OKOSTJKA ]lav. I 1st. 1st rosA !HI Battleshii 'o C M l tUNA 1)— mon 0 KBRE Km DiSt. Attached MAT( (15p •MM 0) To 1st Batt leBh .p Djv^Se cond Fleet - 3 1942 1943 1944 1945 WIT 1941 DESIGNATION DEC JAN FEB MAR APR MAY JUN JTJL AUG SEP OCT NOT DEC JAN FEB MAR APR MAY JUK JUL AUG SEP OCT NOV DEC JAN FEB WAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG 4th Destr( ver Squa ron Dea tivi ted NAG NAKA < Spec ill T ve} JRA^ To d D< str< yer qua Iron/ Seoo nd F eet TJRA 7ed 2d Destroy ivis er I on ctiv ted ion 4 th 4th Destrj P\Jl 0 1< th I Squa Thii d Fl jet 9th Destrc jer_ Divi ion Destroyer 1st *rayt jadrc n'F' fth lee Squadron 24th Desft oyei Div sion ro ii t De stro er J qua a ron/ irsi Fie t 8th Destrt yer Divi! ion Spec ial Rese •ve) 27t] Des troy* r D: visi n 2d 1 testi oyer Squ dron /Sec and ] leet SAMI DARE >(2O! J- To lit De: troj er S< uadi on (l)=(20] Second SAKA WA (IM20) 53d Des troj er D! visi ™ j | H2O] Fleet OIZD EL {1 W2O NT HE (IH201 11th Destroyer TST3 IA (IHZO) Squadron HA SI (IH2C! > T Coi Dine d Fli et EA KI (IH2O] SH II (IW2O! NAS KI (IM2Q SIMI ffi (i K2o: ERO a. (t H20 NA^ SUZTJ n [BK2Q 11th lth Seap lane Tend er D visi on , 1 Seaplane HITC SE niic SAS BO ] av Dlst I To £ outh east Aret Fie t Tender lwA 1 JARO IKA^ A MA ( 1) KAMIKAZE 1 A3TJ Attached To C ombi tied 1•leet DYOD HI5* —^ 1) TO 5th :rui »er I ivis Ion/ ioutti west Area Fleet Third Fief t eaet ivat sd) stj r J obil ( Fl :et) Dea< tiva ,ed 16th Cruii er I iv. 16th To 3eco id South e rn EJ :ped. Flee Cruiser Division o 16th C •uise r Di r/Se ond Sout lern Expe i. F l •et KtMA [3) To Thi d South e rn E :pe4 Flee 17th Minela rer I V. 3) r eaot vate a Third 17th ITSOTII- . To Tl .ird t Minelayer [3) Fleet Divi s ion 7AEYAMA . (3) To Tl.ir d 3out i era Sxpe d. Fl set TATSTMIYA Ird Flee iARXI ' (3) To T t 'th C ruis 3r DvisJ on UMAt 0 l) A 7 th m Cruiser IOC3AMI 1 - 5 TWIT 1941 1942 1943 1944 1S45 DESIGNATION DEC JAN FEB WAR APR MAY JUN JtJL ATJG SEP OCT NOV DEC JAN FEB MAR APR MAY JON JU L AUG SEP OCT KOV DEC JAN FEB MAR APR MAY JIM NOV DEC Sth Cruiser Div< sion 8th (14): =(1) De otii ted TONE Cruiser (I4) -ID Division To 7th !ruls4r Dlk/Thit-d Fltet (14)- ] DthI estro yerjgaadran i\5)T> sacti rated NAGARA (14* K2O) To 4 th Destroyer Squadroi/See and P AGAE 3 3) Remsvefi ?o 2d Destroyer Sq. /Second Fleet 10th 4 th Destroysr DJvisioi 'o Co ibined Fleet Destroyer (14* 10th Destroyer Iivlsl •10) D !actl a ted Squadron 15th D astro rer I ivi si (14* (3 j Dea jtiva ;ed 17th Destroyer (14* •05) 2d Destroyer S—-Ki5) "o 41s ; Des .sion 4 1 it De 3troy ir Di-r. (is) ?o 2dDestroye r So/Second Fleet 11th Battles lip Iivisi 11th (I4> =(£0) Deactiirat Battleship (14 •C20) K1RISH1WA Ren Division (14* -(20) Hetties hip (24] 3d Battleship (241 Second F3eet Division HARUTA (24) Third Fleet 5th Destr (10! D( aoti"ated 5th NATOHI T< 16t: Cru cond Sout] l xpad. Flee Destroyer ser 5th Destr yerliiv. Squadron Fir it So ither u ExT>$d, Flfcet 2Sd Destr< yerjiiv. (10) Second S uthei'n r:: eet 6t h SuDtnaa ine jig. Com' lined Flee1; 6th IHOGEI 6 th Submarine Squa lron/( omblied F Leet Submarine 9th Subma tiva ed Squadron Div. 13th Submarine i\O)\ r Subiiarim Squi dron jied fleet I-:.23(25WIO) 12th 12th Sesap. ane Seaplane Tender D:Div ^ ([) Deac tiva- Tender KAMIKAWA Division To Third Fie SANYO MAR .st Cirrie:1 Div Lsion (14)= =(15) bined Fleet (14) •(10) T' 3d qarri< r Di^r/Thi d Fleet (14*1 • t I5J: Oth Air Flotilla (Tra ningi Deactivated TTJHO 2d C CHTOS I vlsio irr lei (15) To "hird Fleet 5oth :OSHO Air 'JKAZE To $lst Ajlr Fl tills/Twel th A r Fie Flotilla ANOYA Air C j/KURI Training) r> T To :.2th Cpmbin 3d Ail Grou Nav. )iat. S JIKI Air C roup To iilst Fl till4/Twelfth Ai r Fie it Air Gt- •it) Deantivatted 3d Carrie;' Division Deact vated CHIT CBE 3a CHTYOCA Carrier To Coibined Fleet Division . ZUIH3 . 2UIKA1U 653d A IT Grc Deaot vated Third 4th arri ir Div sion I.ISE Fleet 4th To Se ond Fleet Carrier .HYUO, I5) Division JJNYO (10) To Is UHO Carrier Div/ (10) ^ombl ed Fleet 3641 i Air iroup "(15) To Se ond Air Fleet 1st Base =(io) eaotiirated SHXRATAKA -mo; o 21s|t Spesial rce/ econc Rout xpe Flee AOTAKA -(10) o 23dSpec Lai 1 rce/S cond South rn E sped leet wee pe r Div 21st Mine -(10) teactirated 1st Subch ser I iv. 2d Subcha er DJ v. o 2ls; Spejial 3ase F ilxpe Flee 12th Subc o 23dSpecl al B ase l rce/s cond • oath sped. leet o 21s Spe ial 3ase roe/ :eoon< Sou Fleei 1st Conve tedflunboa 1st IT 32a Special Ba se Force/Tl ird ! iuthe ied F eet Base 51st Conv rtedJRubch iser IiLI j Force 52 d Convert id Subchaser o 24tji Special Base Farce econc Rout Fleei MAR o Sup •rce/ iecond Sout ern :ped. leet o Navy Min stry Supply •""or 1st Defen eaotiy ate a 1st Conm. hit !eactikrated 1st Survey To Sebond feouthbrn Exlped. Fleet 1st Harboi o 2ls|t SpSpeciae Jial BasRase Farce/ Becontl Sout Fleei RAKTJSAN v\ RU mo) o Navfcr Mln Lstry Suppl UNIT 1941 1943 1944 1945 DESIGNATION DEC JAN FEB MAR APR MAY JIM JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOV DEC 2d Base Force WAKATAKA 21st Torpedo Boat Division 11th Minesweeper Division 30th Minesweeper Division Mine sweeper No.19 Minesweeper No.20 21st Subohaser Division 31st Subchaser Division TATSUHARU MARU SHINKO MARU NICHITU MARU SANUKI MARU SUMANOURA MARU SEIAN MARU 2d IMIZU MARU Base 2d Converted Gunboat Div. force 3d Converted Gunboat Div. 53d Converted Subchaser Div, 54th Converted Subchaser D iv. KENRYU MARU KUMAGAWA MARU 2d Defense Unit 2d Comm. Unit 2d Survey Unit KYODO MARU No.36 Third 2d Harbor Master's Office HAKOZAKI MARU Fleet Special 32d Special Base Force Base TD Tbi?d Southern Expsd. Fl Force 24th 24th Special Base Force Special Base Force 24th Conn. Unit ITSUKUSHIMA TATSUMITA MARU TAMABIKO MARU W 0T0D0 KAMIKA A MARU 425) To Comb in d Fl set SANYO MARU MOGAfI 15) 1o Conbined Fleet 33d Air Group CHITOSE :i)To C?r:-ier ])iv/Tiird Fleet 1st uir G'oup 1st Harrier Di 5( th A! r Flc tllle(Training)/Thi:?d 1 1 in o» r-i o H 43 p ID la MA R O (n g 20 ) r 0"J• C O ^ rl -ffl. 0 > r-\ P. P. P. ss •ri a O S9 H r. tro u O I k r^ V &• rl •H S •rl rl &i rl fc R O S JA £l S 3 ID in in O 5 S^ EH N 4> IS H iH W & •cf (0 ca 01 19 4 B ise r M o £S -< ^< ro s 3 H 43 MA R ee t © ee t rj o rv ^. 0 43 4> irl T o T o 43 EH T o fi EH EH +> P EH 0 itil l U j rH rl ^ g iff o O o o flu |£< c I « 1 1 It •04 ) o ^ a -< << < •a! 194 2 B XI xl Xi 01 till e s P 4» +3 If) 0J ^> r^ CVJ ci « Si •(25 ) 0 0 0 0 MAY ! q n EH EH EH .toi l '(01 ) 1 01 ) 4> s s 0 B ? 0 S S c s ID — p M S rf cl ri Ct P O a 0 c O O (3 a GH a g •H (SO •H •ri8 (0l) « s m bi n « P n § •H OK> 3 1 I P i R T fr- I-l —' " _J • 0 0 0 o r< 5 M u ID P. 3 +5 (1 5s|S n U ID i iH fa 3 g 1 6 Pn D rl 4> 4> E 5 • i § r P m m 4> r* >H -a! •H fr) U g 31 H% CO "3 I B | E HS P ID < % $ 5o g p CO W to ca $ 8 S H S^ < Sxi xl * %$ M %K I CD 43 43 Sg o P Ol O P ^Q H P| rlF B 24t h E CHI T 6t h > r» 01 S Pel (M W IO * S i 1 O EH lei EH 2g MM CM H MO | 3 CO a) u R r- m *r,^ «*• f Si vH *H + 1 § a 3 w*< 0 « ^ H «c Js r-l i| e 1945 ONIT 1941 EES1GNATI0N DEC AUG 3d Base Force 4th Converted Gunbo 3d Base TOKUYAMA MARtT Force 13th Converted Minefetreeijer D: 55th Converted Subc 3d Defense Ohit 16th. Air Group 4th Base Porce KOEI MAHU 5th Converted Gunbo 6th Converted Gunbo 14th Minesweeper Dl 56th Converted Subehjiser 57th Converted Subc 58th Converted Subc Pourth 4th Defense Unit 17th Air Group Fleet 4th Base Force 5th Base Force 7th Converted Gunboi 5th SHOEI MARU Base Force 15th Converted Mine 59th Converted Subc 60th Converted Subc: 5th Defense Unit 54th Guard tfait 18th Air Group - 10 UNIT 1941 1942 1943 1944 1945 DESIGNATION I DEC JAN MAR APR MAT TUN JUL ATJG OCT NOV DEC JAN MAR APR MATJOJ JUL AUG SUP OCT NOV DSC JAN FEB MAR APR (MAT TUN JTJL ATJG SEP OCT NOV DEC JAN MAR APR MAY JUN JU L AUG 6th Base oree 8th Conve ted Junta at DLvds 8th Specia1 3a ae 1o Ei hth Fleet Foree !5 i84tti Guird 3 Oth Bas< i ce) 30 th 3o th S eotel Base ?. rce Special d Coimuni catijons tlnit To C a F3 Base Force 45t Guiir d r 2d uxfa :e ^s cort DiT slot •(I) To avy Mini stry Sup ily rorce 2d L MAI TJ Surface emoied Escort DiYi aion To (eneral 53001-1 Coranand MART K1N.T 1ZAE ,To eet rivi .TTTZtKI. PIT 3()th I st r »yer Div. (I0MI4 To ighth r. eet (I) .OKI, HIT DOR: TORI - 11 1941 1942 1945 UNIT 1943 1944 DESIGNATION DEC JAN MAE APR MAY JON TUL SEP COT MOV DEC JAN MAR APR MAY JOT JtJL AUG SEP OCT NOV tEC JAN FEB MAR APR MAY JtJJ JTJL ATO SSP OCT ROT DEC JAN JEfl MAR APR MAY JON Off 4th Mas fcer'i I) To 4t t Base ?orcs/Foirtli CIYOKA'VA 'o Sighth Tlett IAEA Removed SHOEI VAFJ (25) Removed YAMABATO 4ARU. 10) lovba HIKAWA WAI U (25) To omb ned ?lee' KONGO MAR1 <2O] Remc ved KINRYTJ MAI U_ To C ambi] e d leefc iMIZURU 2€ dj Ttait Dt acti ate< -(15) Survay Hi it To Eigl.th F Leet KAMHAWA : IARU To Ip-th eaplpne 'ender DiTf/Com line Flest ETKE 3d Sp.ljOT. IBI tding tohit 10) 10 ;h. Cc us. TJ lit To n eet th C ms. tfnlt { OK.J.W, )eaetLvat« d rtheist jrea fleet 8]3t - 12 1945 UNIT 1941 1942 1943 1944 DESIGNATION DEC JAN MAR APR MAY ATXi SEP OGT NOV DSC TAN FEB MAS APR MAT JOT JTJL AOG SEP OCT NOV DEC JAN PEB MAR APR MAY JTJN KJL ATJG SEP OCT NOV FEB MAR APR MAY TONJDL AUG Fifth Fie t/Ccmblnad FLeet ft h Fleefc/Noithe a it Area 1'leet Dsact TO ted 5tl DiVy* enth leet 21st Crui er IITIB )eao 21st TAMA «3O) TO lltl Des troy r Scuadr)n/C(«nbined eet Cruiser nso -(30) To Y0K< STKA Dist Division KIMIKAWA *ARU NACH 1 Tc Fifth F eet To Ci nibin ad F eet ASEICARJ 125)" 'o F: fth Flee SSd Picke Boet IKAGI MAS iTo £2d 'lcket Bolt ast Fleet UTATA MAR &SAKA MAR1 Sulply jtiit, 'Combined Fleet SSd SH(KO Pioket •(I) T< Ml list: y St pply Force Boat Squadron KOWi MAR CT HINO MAR No. Pisket Boa1 Groip 3HINtY0 I ABIT IOKTJI MAR NO tl) •(I) Tc 2d Bo i t Group 1st 2d & 3 Flo cet ioat Groii JS Fifth (Z5> (21) To 2!d Pioket Boa1 Sqiadro I/NO] theast A*ea 1 leet Fleet -3] st Esc or1 Sqiadroi ISTJZJ o Co nbin d F. eet 43d 52 d Des' roysr 31st Escort CD ill & 2 .at Squadron Coast Defonse Fii st E 3C or Fleet CD J12 & 3oth D6B' •roye(r Deac tiva ;ed JSSd Air 181 DOB troy »r 5c uadr on (NOV) DeaJjtlT ted ABtKDWA i -(20) To ;omb: ned Flee Di 1st Destroy vislm (3D Deactivated Destroyer - r Squadron De3tro er I ivlsLon — -(s: '..7th ar Slrlsl To 2d Hestr oyer Squ«dran/Seoc nd I leet 18th Destroyer D Lvlsion (15) J ival ed 31 st I). strosrer ion (I5W20) To 2d test oyer d Fl set 7th Base fore CjntHdlMA 4rea Slj Baa e for se I I (I5W2O) To Combine Flest CHICHIJIMt^ Ait Gro|ap i MAGINS ]»HU 10 th Con* rted Gunb «t D •(25) 7th tlO! YOSHIDA 15) ed V To YOHOSUKi Nai.Bia Base 5DQ Foroe (I5>i ifcARU 17th ConT irte Mlnssweupe r DlT. 66th Con irt e T) CHICtLJIllA CdnBll.I]lit 7th Defen e Pi it - 13 TAN 7EB MAR APR MAY JTXT JUL AOG - 14 1942 1943 1944 1945 TWIT 1941 DESIGNATION EEC TAN FEB MAH APR MAY TUN TUX AW SEP OCT NOT IEC TAN FEB MAR APE MAY JIN TUL AUG SEP OCT NOV EECJAN FEB MAR APR MAY TUN TUL AtJG SEP OCT NOV IECTAN FEB MAR APR MAY TIM TULATO Sixth Flei t KATORI •(15) To General Eieort Command Subnu 2t h Divlsloi (10) Deactiva 2th gutamnrini DivLaloi (10) 54t L Sutmarlie D vision I-10 (10) ltemo^ed Sub ngrjj ie_Dj 10) vate fl L5th ibm.117 K30) Deaoti L-ll •(30) Removed I- 12 (4) temoved 5*& 1-15 (16X30 ) Tc 1st Di srisit lsi (2o: 16tl Subiiarire Submaxijie Di .(20 Sixth 1st Submaiine 3qua Iron 1st Subm. TO Sil Tleet th FLeet Z5) Deactivi 2d Submarine PjJTiBJon To Exth 5d Subm,D (I) To Fourth Fleet 1st 4th Subma: ine Submarine Submarl ae 5quad:-on 320) Deajstiv^ted ine Division -(20) To feixti Flejet ine Division Submarine -(20) Deajtiv« ted Squadron 1-7 -(20) To 3ixt!. Flajet I-10 ID To Sixth Flset SAHTOS MJ RU •(20) To idDRE Nav. l))ist, 3d Submar ne quadfon Deactivated ilth Submarine DivLsior (15) Dea i tivated 12th Div Laioi To ixth Fie 20th Sul .bmi rine Dea itivuted 3a [-8 -(20) To th S ibmai ine 3q/Combir ea F eet Submarine 1-1 Squadron U5> To 3 at Sabma ins Squa Iron/ Sixti Fl et 12 d ubmarine Dlv!aion YAStJCTJRI 1 ASU To Sixti Fl< et • - 15 UNIT DESIGNATION JAN ?TB MAR APR MAT JUN JUL AOG SEP OCT KOV DEC JAN SEB MAE APR MAT JtlN 3TJL AtTG SSP OCT NOV DEC JAN FEB MAE APR MAT JUN JOT, ADC Bth Submarine Squadron ubm. Sq/S: xth 11th Submarine Squadron 3 ubm. Div. S([/Combined Fit. Subm.DiT. Subm, Eiv. - 16 UNIT 1941 1942 1943 1944 1945 DEC JAN FEB MAR APR MAT JON JDL AtJG SBP CCT HOV EEC JAN FSB MAR APR MAY JTW JTC, ADD SEP OCT NOV ESC JAN 1EB MAR APR MAY JON JUL AUG SEP OCT N0V EEC JAN FEB MAR APR MAY JUN JtJL ADG i Su marl le S luadi on 'tiV te d !t S : Dinarin e )1V. )eac ivat sd >36 364 emov 3d -361 ; 55 iRem ived (3 •T- 566 i-To 15 t Sub nari] ie Divisio n 7th [-36 7 Submarine 568 Squadron •370 Hi r) 1 T-36 572 j Sixth (27 > To 16 t i Sub sari .e Divisio n Hi -10 4 (5)— 4£ Fleet Hi -102 (10) —(20 1st Stubm . Div., -(2 0 7th 3ubm irin« Div isioi L „ J )—H 110) Fift h FI sat 5d Syttm. y no) To 1 3th ! lubm. Set/ RO-3 Silt let 7th Suta isic (I £=2 (10) i-a RO-3 3oth Sub o. Bes B Dn; ) To 4t h Subm, Div 5 \ I TVs 34 t Sul nu I i >I-26 (3 if D act" (6H24) To : 4th 3ubm Di, Attached 1 ^th Sim. JaseD f D (24> (10) 1 o st:I Stf an.Sc /Six th V .eet 'J St S bmal ine 3a se Unit Third So. Erped, Fit. (28> (10) 1 o 14 bh S tbn.1 iv. TASUF :mi KARJJ MARU L3th Subm -Mv. (14) Po 7 -h Suam . S ivfcis hth rloei iemo-s ed JBH1 To Y URE Supp .y Iff it 651S1 : Al: Gro UP i even .h F eet If t h E scon Sq, IO)=I (5) D sact: vate d 18th TOI 1WA 10)— <5)1 Escort K5)[T a Seient h Fleet Squadron K )EI \ [AR0 E IJO 1tAR U (I0H •(5>J GHC HAKD SAN 1ARU (10) -(10) Remo ve d 10 3d E con Sq. 10^= H IROTS UKI 10)— Seventh OKI IOH Fleet lQ3a Mr AKE I0H Escort Squadron OKU (10) KAB1 BHI (I0H 1 EA1 AWA I0 H CD 59 ( Coas Dei ense Shi] NO 59) (10)- Cl 60, 37, 1 2 & 21 3 (10) CT 02, • 04, 1 )6 & 154 10)— TTWIT OSEI I Gu urd 1 tit 33d Com erte Mil eswe per Div. ( ) De actl' a tec i TO CIWA & KO I M LRU (5MI0) To ( ,ener a l Escor t Conmfind E l ro M LRU 5) — 10) E moved TSU 3HIMJ Gua d Uli t (I5> Si s Co« st I fen se G: oup 10)— - 17 ONIT 1941 1942 1943 1944 1945 DESIGNATION DEC JAN FS B MAE APR MAY JDN JUL AUG SEP OCT NOT DEC TAN FEB MAE APE MAY JUN JUL AUG SEP OCT NOT DEC JAN FEB MAS APR MAY JUN JUL AUG SEP OCT NOT DECJAN FEB MAR APR MAY JUN JUL AUG Eighth Fie et Soutieasi. Are i Fl^et/Combine a Fleet (14)= =(24) CHOKAI To < th C :uiser Di /Sec nd ]'leet EBTUGASA 15) Ri iino TEKRTU 10X£4) TO Ship 4th Class JO) (I) T< Des troys r Sqaadrc n/Fl st Sleet •OBA •(251 To ] irst Sout hern Expe d. Fl< et YUEAEI ) To 3d r istrc yer Fit et NAOJIRA Fou] h .eet 8th ruis r D .Tisi 18th (14)= eactlvat Cruiser 1ENRY7 Division o Eighth Fleeit 3d iestioyer Squa SENDAI 5) Rsmove YI3I ARI 3d Destroyer 8th Des royi ". (25 I) Deactivated Squadron Flee 11th Destroyei Div sior to Ceitra] fie Eighth (25 (0) Ieaet: vate d .^ABAGIR: Fleet ,22d Pivi ion 50th Destroysr Pi Tisi (31) 7th SiLbmar mad'on JINGE] 'o Ku rANa list. 13th ubma :ine Divi ion Sst Sutra.. tt.T. 7th 5iDe activated Submarine -34 Squadron To Southe; st Area leet • th Be.se F 5d S .bo ha ser IlYis Ed S .bo ha 7th j/E j ghth Flee Base 82 d Guar a Unit lint Force (29)" 35th Guar I Un (15) 5th qomam: lie at ions Unit ubma 4th Foroe/Fo irth B"lee - 18 UNIT 1941 1942 1943 1944 1945 DESIGNATION DEC TAN FEB MAE APR MAT 3"TK TUL ATJG SEP OCT NOV DEC JAN FEB MAR APR MAY JTJL SEP OCT NOV DEC JAN FIB MAR MAT JTJN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JON JUL ATO 8 th B ise Ioree (14)= )To 3out least Are Fli Ho. 30 & (14) 21L (10) 'o MA CO A*ea Spec' al 1 ase force /TAX LO Ni «-. GI: ard )ist. W-S5 O) To 1st Base For i6tb Guard h Giard Unit (5) 3th !fulmarine Bas« Unit T ) St: i Ba s e Po•oe/; J outleaBt Ares Fleet 3th ( ommu alca iloni Bth : [arbjr Mi Bter Eighth (25) s Office Fleet 1st Base 32d Subc hase: • Diiisioi -fl) To 4th jase Force/Fourth Fleet Blst Suachai ier 1 jTis Lon -(20 To 2 Oth Jase Force/Ce: tra ) To 21st Spe Base cone Sou ;hen Exjsd. F .set W-2J To MAIZDRU T-15 () To SAS1B0 Coast Defe ise :squacron W-J6 1st —(30) Hem avad Base (5) Td> Third Stuthern E sped Fle> Force 84tli Guard Hilt 87 th Gi.ard Obit Deac tiv ited (5) (th S >ecit 1 Nara l Landing mit KTKE 7tl : Navil Liindiig Vn;.t 1st Conn unici tioi s XJalt 16th & 1 th , TJWt s (I) •05) 1: it Ai tjai i amar .ne Ietec don (IOV Station •(3D Dei ctivated 3 ! Ant ieuttt. Defection Stati n (i). 2d iaae Force SHrtATAIA,Ch 26, (29) Ch S4 2d 2d iiommi ni cation:: Unit Base (29> To lintJ Fleat Force 12t i Hai 5t] i An1 isul 3d AntisibmarLne :)eteotion Sta- .ion (10) irate d 35 • ci •05 14tl Bas $ 14th To Sou;hea! eet Base 83a & Bth Guard Force 7 ;h S]ecial Na ral tandi ig TIlit Dei cti-yated 11 ;h k.31st Ant . subujarinje De .eot: on Stations (i)—<3t)J - 19 - 2 0 Souti east Area jm • i Southwest irea - 21 1941 1942 1943 1945. TJNIT 1944 DESIGNATION DEC JAN FEB MAR km MAT JTN JTJL AUG SEP OCT NOV DEC JAN FSB MAR APR MAT JUT JUL AOG SEP OCT NOV DEC JAN FSB MAR APR MAT JTW AUG 24thConver edCru liser 24th HOKOKTI MAi 15 Converted LTKCKV MAI rr bine 1 Fie Division KXTOSHDMA MARU Pick it BoJ it so, i aaro CHO 3N MA:TO To 51h Pi ket ]joat 2Sd KAZA1 I MAR J (20)i —(25) To roEos JKA Na v. Dii it. Picket KIKT] MAR IT TOKOSUKA Nav Dist Boat 2d 3d & 4th 1 Icke ; Boat Gro ups Division r i 10) D« ictivated 5t] L Pici et B > Deastiva t e d ;th PJ cket Boat 1st 1 iscor idron 31st *t Sq' ladroi HANA •mi ISUZl i < « »M B m K5>— —(15) 30th & 43<. Des1 roye • Div .si on: 43d 1pest. 3iv. 2 1 Jt Coi »st D« fens< > Groip' !20> ^80) To 31st D £21 Def« Ship 1 ro.22] WBes?t £aT*iu To S€ cond Flee 1 Escort C D 43 Fi e t 13 7th 1>est . Squadron CD i !9 & 3(D 31(13) ^ I'*— I amove d 41st Dest Div. 33d A >up < MA] TJU & KANJT ITo list 17th Dest Div. tooa t Del! ense IP (20) XASA] )o at i ITAK:] (20) 52d ]lest . )iv. CD3 1 <20> (5)— •(5) T > Fira t Ese ;ort fleet 'Gene: •al Escort Conunand Combined 11th Seap ane 1ende " Divi sion 11th _ Fleet ped I Seaplane To S econi t Tender n« Division J J. KA1 IIKAWJ MAR1 (20) i; »th A ,r Flctill a (20) ^10) )aaot .vated 11th 721s Air Grouj (20) •(10)1 Air T o FJ fth A ir F: eet Flotilla 762d Air Group (20 • d Aii Flo1 ilia (5> = =(15) ])eacti •vate< 141st Air t rroup (5r— —(15) i 21st Air ( rroup (5H —(15) 322d Air ( rroup (5>—i —(15) 62d n Air 41st Air { rroup (5)— —(15) Flotilla z 45th Aii ( rroup (5 H — Olst Air 1loti la(T] ana) 1 101st onlsi & ] 361S' Air GTOU 38 Air >TO I avy General Command Flotilla 022d Air Group ;8)— •415) To Fifth Air Flee ]022 d TO up (Trans.) Ai r f j 1C 21st Air ( •roup Deac ivated UNIT DESIGNATION 4th Carrier Division t Escoirt Squa iron/Fi Fth Fie 15) IeactiTetea Squadron/Second Flee estroyeir Squadron/Th )estroysr Division 11th Destroyer Squadron destroysr DiviJion Destroyer Division - 23 1941 1942 1943 UNIT 1944 1945 DESIGNATION DSC JAW FEB MAR APR MAY JtU JUL ATC SEP OCT HOT IEC JAN FEB MAE APR MAY JUS JUL AO3 SEP OCT NOV JAN FEB M&R APR MAY JUS JUL ADG id 3 d 3d Dpstroyer Scuadroa 320) Deactivat Destroyer NATOEI 0ombiced FlJeet Squadron To S2d Dfestroier DJvlsio Deactivat ed Dsstroyer Djvisio]n <20) To Mat Escort Squa Jron/Combii ed Fleet 4th Submarine Stquacdr m sacti a ted rn Eaped. fleet 4th KINU 16th Cru ser rjlvisipn/Se ond J (out he SubmarinLbmai e 18th Subme rlne Dlv. Eure Nav DiBt Squadron 19 th Subms rice Dlv. 5th Subms rine 3quad:on/Cnntbin« d Elst Subma rine Dlv. 5TAG0YA MAFlTJ To 6th SubmE rlne 5quad7on/C (101 Southwesi, Aree Fleet RIO-DE-JAipiRO iJARU (10) Sou^hvresL Ares Fleet Destrjyer !iquadion/S€cond Combined STURA 4th (Fleet Fleet 6th Sutnarin3 Squidron 6 th CPOGEI (10) KURE Nav Diat 13th Sifanaripe Di rision Submarine (10! Si7th Fl set Squadron 21st Sdbmarihe Dikrision do: To 7tt Submarine Squailron/^ourtt Flee i-: To Division (101 HAGOYA MAR Eleventh Air fleet Lst Combined Cojanuni^atioins Foijce TOKYO Comra. Unit TAKAO Comm . Uhi '?o MAJtO Ra-i Guard 3HICHIJIMA Conn Wait 1st Area Sp Base Force Combined OKINAWA Cdnm. i t i t Coma. Deactiva Force 3d Conm. Tjiiit To 4tji Basi 4t h Conn. XJiit Fore e/ Fourth leet 5th Comm. Unit Spe ial Base Boroe/pourth Fleet 6th Comm. Unit Po 6th Bas« Fort e/Fotrth FLeet O'lTADA Coa m Unit 8th •h Cosfbineq Spi NJav. Landing Forc< (20! Combined Special MAIZIRU 4tjh Lindini Unil (201 Naval To Eighth Fleet Landing KTIRT5 h Sp. Limdin*; Unii (20 Force 'OKOSIKA 7th Sp. Tav. Landing: Unit (201 TOUT EESIGNATTCN JAN FEB MAR APR MAT JTJN JXJL AT3O SEP OCT NOT DH3JAN FEB MAR APR MAT JUN JUL A0G SEP OCT NOT DEC MAR APR MAT JON JDL AUG Z& a Combin< Combined Sp.Rav. OKOSUKA Landing THE 5t h Force SASEBO av. Lan Combined Sp. Kav. ASEBO 1st Landing 3ASEBO 2d Force 1st Transport Squadron lot], Sp. 10th Special lout si Attack Squadron SKTTSTJ TAKASAGO lATA^HI (20) To "SOKOSUKA N&T.Dlst JRAGAK V - 25 1941 1942 1943 1944 1945 UNIT DESIGNATION DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT H07 DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT N07 IEC JAN FEB MAR APR Mft.Y JUN JUL ATJG SEP OCT N07 IEC JAN FEB MAR APR MAY JON JUL AUG ANJU & KJ LSADO XX*D & 12th C OEstr u L UD1 ts ( rp— ..f MIYd OS k MANJ 1 Uni .{14} ? 1 0 isigni 13th & 14th Coratr u itioi ts h F. .ee^ CD 1 Z 31s- - Bse ort Sq/Cc mbin ed F! .eet 1 AiT Gro ip (31>^H ^'4)y IW| * A CD * 4 |E^ ommu ; (15). MI4)^ (25 MIIj <5) T( Fir at "S con Fie et 85th C iica1 ions uni s/Ei Flee b To 7th 1 iase Fore 5hth emoT( 85th S ubma Base > (>5* ^I4)J d Ch 2 3 & < )(SUt ohaq} STB I o.26 It N< Ch. g 11th Submarine Bas9 Urc Fir st & uth< rn Exped. Fleet o 9t i Sp< leial Bas S Foioe/ F irst Soul hern Si p d.F: eet -i•MM foil V 7 1 red L 37 4 LS7 3 J Ren ored rTg To Ed 1rant port Divi sion 2&) To 1st Trai spori Sq^ Somb: ned Flee 7 13 To 2 d Tnns IS7 9 port (1)— ^—• • temo1 ed Combined U 57 12 5, 3 36, 143, L60 (!).—• 7: list Kir rrou > (15)- <2D) " \ TO 11th Air Flot /Com >ine< . FieB t 7« d Aif QT' UP (!>—•• —CO)/ 7 33a i ir G roup (10)— 784 h Air Gr >up (l)^^ DEDSJXA 7251 •h Ai r Gr >up {\f— 3>8a* DTstT 72 »2u ^ ir G roup (20)" • a N&.TOR" : (20) ••• • •(10) Reme red AT IGO, JHOKi I , MA JA,N( SHIR JAMI wo KI5^ ^20 Remc Ted Cl rroD * ZT IHO, CHII OSE s 3EUY. I (21) H201 Remc Ted CH 3CUM L P?K _ item AOB To ] USE )ist. EACH: : (is)- —<20) Rem oved TATTT escTrar iTTTT ' 'A THC ZUI onuTL .AJJtv AB 5KUMJ i. (20 -(20 > Renove d KIS ) 05) J SAKJ .WA{30)-^ - rAKAl A, SH CRAN II, ) f OJUJJ MI, A; CIZTJ •x > (f5^ - 27 PART E ORGANIZATION OF THE AREA FLEETS NOTE Although Part n deals with Area Fleets, the complete organization of each is not presented. (See Frontispiece: Chain of Command). The Fleets and Air Fleets, the integral components of Area Fleets, have been purposely omitted (except First, Second Third and Fourth Southern Expeditionary Fleets) as they are categorically presented in Parts 1 and HI respectively. All other units assigned or attached to Area Fleets hove been noted in Part II. 1945 UNIT 1941 1942 1943 1944 DESIGNATION DEC JAN FEB MAE APR MAY JUN JUL ATO SEP OCT NOT DEC JAN FEB MAR APH MAY JOK JTJL ATJG SEP OCT ROV DEJACN FIB MAR APR MAY JOT JtTL AUG SEP OCT NOT DECJAN FEB MAR APR MAY JDN JUL AtJG ', !outt west Area Flee t/C oi abine a Fliwt (imperial General Hqs.) (101 GAIA {IS} (20)To 15th Cruiser Vi vlsi >n/Southw< st Area 1'leet ith Crulstr Di rlsioa ASHI3ARA (20) •<25) To Slst qruis|ar Di[visi|ra/Fj}fth fleet AOBA (251 Po C unbired FLeet !, .TORI HI) To I teser tre SI ip 4th Class 16th cruiser JO) Re movel Division To C anbired FLeet To S ) uthi te st Lrea Fleet sd 19th Desi iroye Di' isioi (20) I cactiirate i South- To So ithiw st Area I leet west 2: id Air Flcitilli Area 23 d Fleet Air Flotilla 2(>2d Air Group -<20) Thirteen E :ath llotlLla (|fc=(2O) 28th Air 331 it Air Flotilla 5513t Air 851 rt A3r Group (15! (15) to Co: lib ine;d Flset th Dastrcyer To 16th Crul liTis irea Flee t th S lbmai ine : )lvis ion (I To E th S[ibmai[ine : Squadron/Sixth Fledt -1st Lir (roup <« To 28th Air Flot 'Sout hwe s ; Arei R; Q - -JANIIRO 1IARU (15) Ki5) f o Nahr. V. nist *y Si pply Fore t !Tr uthe:"a r Compiled rit. To 6 First KASHII ) To Training Division Southern Kure Expeditionary (25 —<25 To 3 6th iruiter D.visiDn/S(iuthv»!St leet Fleet SHIMT5HU I To Fleet 5th De D3 visi )n (14; Dea tiva 9th Base 1 oroe HATSOTAKA' liOlRenoved 1st <2O)To S isebo Nav. Dist 44th Con erteJ Minesweeper 'o' ]Oth JSpeciEil B« se Force Fi r Sou then. Expsditionar IDth !!p. BBiie Forje/Ftst Southeii Expsd.Flt.ZLC-) g '•GO! K20) Tol5th Bdse Force/Firs Southern Expeditionary Fl< et 9th 3AGARA M, Base juth rn 1 cpedi tionury Fleet Force IKO MARU 10) B emoiri 3H0SA MART (10) o 10 ;h Sp, Baso For je/FJrst Soutt ern Ilxpeflitioi ary rleet 91st Subcl Dirlsii on 1] Be activated NOJIMA M. o Na Ministi Supply 1 91st Guard Deao 91st Conna. ttait tiiated Ith Submarine Base To 10th SpeAlsl 3ase Fores/First S - 28 £5 a ^ tf g Pf •45 & JB-JD a e flf 3 01 (D O ID Mi ing < TWIT DESIGNATION JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOT DHJ JAN FEB MAR APR MAY JOT JUL AUG SEP OCT NOT DEC JAN FEB MAR APR MAY JtH JUL APR MAY JON JUL AUG 4th Class moved 'o Reserve Ship th Class v(Radesl mated) •f(il_Ds act!rate*i til I Cons TThi1" South west Area Fleet 15) deactivated (23X5) 10 Sesond Second Southern 2xpedi t ionary Fleet rn Ixpedltionary 16th ?o Southwist Jrea Cruis e Dlviaio - 30 1942 1943 1944 1945 TMIT 1941 DESIGNATION EEC JAN FEB MAR APR MAY JOT JUL AUG SEP OCT NOT DEC JAN FEB MAR APR MAT JUN JUL AUG SEP OCT N07 DEC JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NO? EEC JAN FEB MAR APR MAT JUN JUL AUG 1st ! pec 3 al Base 1 orce HIEA' •AKA (P) S Sth ?lee1 feoue P Wftj ) To E3d Spec al I ase /Sec ond ,outl era xpei a tic nery Flei t emoi ed 12 Ren oved (3 d ls t Subc lase r Dii MO'mm — ( ) D«act i vate< 2d Subc mse r Pii ilO)— k DBUfcl Nav . Pi 3t. To Fin t B8 Be F Dree, tigl th 5leet T8TSu er N icha: o.IT ""M Himmm- emoved 2lBt <« atro. Boa 104) ) To Osak aNa- lius rd. Eist pscial IYA MARU rp Base ( ) ToNav . Min str; ' Sujpl y Foro« Toroe ATSU D Trai .Min Istr; T Su] fore a At] Gra UD : r Gi oup i l\ I eact vat. d uarc ; 3d i Uni th G iard Unit •(101 Dead ivated th G lard Unit slst ( onmu nica tion: Uni b To 3 I Con bine d Coi Ei uni cati( ns Ibit/ 3outl wesi Axe. l Fite t 6 th Second South- South- 2 Jd S] ecie 1 Ba3 6 Ftro e west ern W FA Exped. iKATV 3) To25t : l Specla l Bas< Foi ce/3 3Com Sou ther l EXT edit Ion aj y Fl eet - Fleet Fleet L5 To 1it S eels 1 Ba se F< irce/ ^igh t.h 17 L L6 otiv ited bcbB£ e fcmbined lee ( Ch4 Td H ( .uhS 22d ,Ch6 Remo red Special Ch5£ Base P2 Force )8 (3 emov sd T ITSUF AEU O.RU To Nav. mini itry Supp ly F( irce j To Nav, SJini itry Supp ly F irce 1 Gus Kit Ith £luard Uni jth!7 Juara bbi To 25d Siecia 1 Ba rce/ 3eco d So uthern Exped. Fit. 2 1 Hai bor igaat sr's Off! se UTJP" B 5a Sp ecia 1 Ba se Fo rce )TAKA ) To 26th Spec ial 3ase Fore s/2d Soul hern Sxp id. I'leet [IDOfi JJAZt Do 0 laka lav . (iuard Dls (IOW thS;, (IOt- 'ated 23d 3 > Specia: ) Tc lit l Sp Bas ! FOI ce/j irst Sou torn Exp sdlt onar 7 Flse t Base e th s'ffich iser Divi Toroe t J 'il D€act i rate 1 SI fINKO MAR [J To LSth Ksco rt S luadt on/G sner .1 EEcor t Com iand 1 (Jusr d T. lit I) To 21st Sp. B ise ; orce /Sec m& Smthe m EJ ped I It. ith uar c Unl th a TThi t 0) To 24tfc Bas i Fo ce/F Durt i So ther i Ex «d.l lee t To 2 Lst bh GLar d Unit peoi al Base Force/ ith A Ir G 70 UP Seco id S uthe rn Exped.Fleet To Sscon ! Soi ther l Ex edit Lona -y F eet I - 31 Foroe/Seiond Southern ]5xped Force i)=(30) A01AKA Guiird Unit 0)—(30) . 32 . WIT DESIGNATION JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JtSJ JUL AOG South west Area Fleet l(5)-n2ifeo> To 32d C ) Fii at E scort - 33 WflT BESIGNATION JAN FEB MAR APE MAY JIK JUL AUO SEP OCT NOV DEC JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOT DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG To lifth Flee; Ministry ISuppj f Mit -h Cobs. A Co as. ,h CODS. CODS. t Cons CODS. Coins, h Co h Co 334)th - 34 1941 1942 1943 1944 TWIT 1945 DESIGNATION JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOV DEC JAN FSB MAR APR MAY JUN JUL AUG (a) 94t & AA Uri t 95 t l AA UKi t 97th AA Uni LA Uni te d (Sf281h LA Uni >- Dsaetive 14S& LA Uni AAUtt *<5, . J.31s ; AA trli t Deact' rated 9ati AA UnI t (15) •(5) Deai itivate a net* AA Un.t(l5)« " '(25) 117tl AA Va. t (15)—• ••• •(25) tiVate 1 120« AA Un (25) J 133* AA Unlt{fS)— i -Vet .ctival e<3 143i AA Un.t(!5) — '(5) j i; 4t h AA Mteo)< •(5)E eac ivat«c 1661 h AA Uli t 1351 b AA H h Ai O li t west Southern 167th ,Ik Unit Area Expo fi. Fleet Fleet 168th , A Unit .183d AA Uni i84t: i AA Itoit last: i AA Uni t i87t: i AA Uni t I AA Uni t i AA Un it 206t l AA On it |i AA Oa i t 31at Submarii e Base Unit (5)— - 35 - 36 194 1 1942 1943 1944 1945 CNIT DESIGNATION JAN FIG MAR APR MAT JIM JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAT JIM JUL ATE SEP OCT NOV DEC JAN FEB MAR APR MAT JON JUL AOG HOKA.ZE RsaiDved .ET. Third Southern Exp€ditlo:iary :fleet 25 Boat 3r QUI- Grou ,934ti Air I) Deactivated Cnmgjjtaii NBT. Dls i.) 824th Conn. VaV (20) iOSd Oons. fiiit ElSth Cons 20)Co Sesoad iJouthsrn E:cped. Flee; 2i)2d C ma. 01 li t 22 ith C (3OK5) T)o Thi^d So itherp. Exppd\. Fleet iona. (20] sactiv ited To Tenth irea :*leet SO 1st Oons (20} Fourth So uti- Cona Tfillt South (33! 5) reactivated west ern Attached Atea Expeci, Fleet Fleet 36th [10) iOth (20> 20) To S scone Soutiem lisped . Fie >t >6th Ds L06th AA a li t acti'rated (20) L05tli AA Uiit (25 124tn AA Uilt (20) To T lrd iiouthisrn Ecped Fleet 115 th AA Uilt 120) 5) 107ti AA 5) 'activated llOtiAA_3nlt AA Jhi t '!6tnAL Unit (3W To Second Southern ipxpedjitlonfry FfLeet ^ lE2dAAa It) (•w 5) ' ,57t i AA Jnlt Deactivated 14iifi AA Unit(5HZ0) To S eond Southern xpedf,tion ry Fleet 14! id AA 15) To Ttlrd Southern E^cpedi loca^y Fliet 118 ;h AA Ttait itivajted 3d hPransbort 5* To 2>th S >eoia:. Bas« Force/Joi irth iloutbirn E:cped. Fleet - 37 1941 1942 1943 1944 1945 TWIT DESIGNATION DEC JAN FEB MAE APR MAT JtN JUL AUG SEP OCT NOT DEC JAN FEB MAE APR MAT JEN JDL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JtN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG 5th Crul HAGJBO o Teith Jx Flee ; 5th 'DO Cruiser Division First Southern Ex sea. Fleet TAICAO til—eo)J KTJMCNO (IM20) 21a t Aiv Flotilla KAK)YA I IT Group 751 at A:x a a up .T0K3 Ai3 Group 21st OTo ! louti west Aret. Flest To i;ieveatli jLir Jleet Air Flotilla .255 Ail Gro tp (15) •I MARU 23a A|x FjotillLa AJrGP 75 id A:.r Gi oup Dire ct C Dtnmaiid Ut der i:-in-C Soathwist Area Flee Air Grcup 20 d Air Gruu p Flotilla KANT MABU (ZO) •<20l Bemi vea 4th Carr South 4th ,SE I)—-(5)1 west Carrier To Tinth Area Fie it Division Area HY1JGA Fleet !6th Air FlotLlla NoitherAphi ippiles eld Central Phi ippiles Alrf eld Obit Airf eld 26th Southern Phi ippiles Ulit Air 14Lst . ir Gtoup Flotilla H53d A)ir Gjroup 2o 1st 22Lat Jiir Giro up 34]Lst ilir Group 76Lat Ir Group Air Group thGard DUit 7th ecial dot Special B To T nth Area Fleet ia«e d Ccmbin Ccamiun Loat Unit sa Deactivated Conm mice tiona Un Combined :.Oth 10th ial 9a se . Fleet Coot. Spe ioutiiern iilst omm mice ttop ? un t Tftiit 21st Spe ial Base FO P e/Se Southern Exp« d. Sleet 31et Co on oncations Siit Third So theiQ iona ry F .eet - 38 FEB MAE APR MAT JUN JUL AtTG SEP OCT NOV DEC - 39 JAN FEB MAR APR MAT JUN JUL AUG SEP OCT NOV EEC - 40 1941 1942 1943 1944 TWIT 1945 EESIGNATION JAN FEB HAS APR MAT ITS JUL ATO SEP OCT NOV DEC JAN FEB MAR APR MAY JIK JUL AUG SEP OCT NOV 'EEC JAB ,FEB MAR APR MAY JTW JUL AUG KUIKAfA MA I) To Ha i ministry Supply Force ELHUUICAMA 5) iamovjad OSE[ MARP (15) Tp Area Flejet HiRCBHQlA MiRU (15)" To Jourth Fleet ssa AA ttoit (20*—(15) Fourth Fi 333 AA oait (20)—(15) 2d Unit ,5th AA TMt Jnit ,Els: AA 3b It 22 d AA Ualt .S6ti AA 3blt 44ti AA Jnit ,45ti AA. Peac tivat 52d AA Hilt 63 3 AAOiit South- East ,64ti AA Jilt Attached Area 65ti Jnit Fleet 67ti AA Jnit .69ti AA Jnit PF i^roup (11 ir llti PT iroap D >aotl ated 2d-Qmver »e4 Group -tao) Deac tivatsd 81 s ; Gua • d Un Lt rd Unit 85ti Gua tt 86ti Guai'd Un Lt Conm iniea iione Unit Sasebo 7th Sp.Nay.Landing Unit I) To Fourth 'l.iet Si isejso 101st Sp. Jav. Linfiin Uni ;(io K20) To C>mbinjed Flpet [okosaka 8th Sp Na Landiig Unit 120) 1013t Ai: • Bass Uni Cleacti ated .8th Subm irine Base Unit 1st Cans. I nit |"LT) EigUth FLeet 131st Tnit ZZZi Cone, Unit Deao tivat In 1st Con& Colt 8th Barb. 3 Office - 41 194S 1945 WIT 1941 1942 1944 DESIGNATION JAN FEB HAH APR MfcY JTN JUL AUG SEP OCT NOV DEC Northe ist Area set/Combin sd Flee t (Aug. 5). <5) Deactivated 2£ d Ploket 1 Soat Squad]on (21)= = TOYOKW: MARU f2l|i HO) Removed AKAG: MARU Removed CHOUT M« g 22d (I) •(0 To Con.blned ?le« t Picket I Boat Ploket Iioat Group Sq. 2(. Ploket B Sc Picket B Curllea Area Base Force (15): North- 1st Destroyer Division Sast Area Fleet ISH1GAKI Remo' KWiiSHIRI (I51 HACIIJO furilea 3d ]T Boat Group Area (15). Base 2d PT Boat Group Force 05) To Yokoauka Kav. Dlst 51st Guard Unit [15* Twelfth Air Fleet -52d Guard IJhit 53d Guard Unit (I5)B 15tl Transport Group 92 AA Unit •(15) Ieactivate . 95( AA Pblt (15 -(15) SHIWTJSHTJ ionununica ions tbit 39 th AA Tiiit (30) .lElst AA Unit (30 Deaot lvated 144th Ak Unit (5) ..146th M ttoit - 42 1941 1948 1943 1344 1945 TWIT DESIGNATION JAN FEB MAR AH? MAY JtH JO1 AUG SEP OCT NOV IEC .Central Pacific Area Fleet/Combined Fleet . (18) ,5d Destrcyer Squafoon (It (18) 1 YUBARI •(101 Eemo v e d 3a JNATCRI rest -(18) - To Combined Fleet g£d peatifoyer Division Sq. d>f .5Qth Desiroyer Division (t) -(16! t5tb. Bast Force ..50KUTEN -tie) 21st Saicbaser Division •(18) To rhird Southern ExpeL Fleet 60th coi.verted Sulichaser Dii ision ud 5th .. 54th Gut -(18) Base 55th Gturd unit To Four;h Fleet Force -(IS) > 56th. Unit •08) ( ,44th. Pntt . 5th Comi unio atiorti ttoit •(18) 5th Ti'ansport G: *OUP Deactivate 1 •118) Central Pacific .5pth BB!« Force Aree = .. ISPZTJ (18) T(' Combined Fleet r (20^'* J£L(t5) To Mth Destroyer Squad] on/Comb In d Fleet 5) To lid Destroys r Squadron/central 1'acific Are a Fleet 23 d 59th -K4S> DeactivE ted .60 th ^18) .91st AA Unit (I5i -(IS) (i> 82a AA unit •«I8) To FourLh Fleet -(«) jj^AA^JI^llitt. (3O> lit "(18) Deactivated A.ttachec (3b: AAJta ma) m Unit (5)* ,18) ? :; ig 6 ^ " UhT Deactivt ted :,4-^-,125th A^/ JJai .218th Ccna. Unit T< Yokosuka Nav. Dlst. •(is) 2Sgaj6asjto^t ^18) To Fourlh Fleet KlS) ^18! T< Third Southern Exp< ditionary Fleet ^18) D« activated ZQ6th Cor ^16) .214th To Thin. Southern Expeditiorary Fleet il l •(18) • 217 Ik -4 ^ KI8) Tt Fourth F- eet Sl^th^ CjO^gJ^^ *8 ) Tc Third Southern Expeditionary Fleet ,^t £M me) T< Fourth F:.eet - 43 THIT 1941 1942 1943 1944 1945 DESIGNATION JAN FEB MAR MAT JUN JUL AUG Ten ;h Area Flee"/Combined lleet 5th Cruls r Div .sion 120) Deac ivate< 5th HAGlpRO Cruiser (5) (20) Removed Division (5XI0. -I o 4t4th Carri r Division/jcombiiied F l et .ASHlGARARA <20) To T nth Aiea Fleet 4th 4th C arr|ier Div. Carrier To Combined Division ISI HYTKJA (5MI0 251 h Baso Fore dot 5) (5) (29J PIf I |(5) ., 7tl. Guar Unit 25th Base 201 h Guai d Uni ; 5) Force (5) • Si!t Guai'd Uhi ; To Second Southern Expeditionary Fleet rtufti • d Uni' (5) 5) Tenth {10* Area 29 th Flwt £6th 261 h Spei ia l Bnse Force Special ={29) Deactivate Base To E5th e/Tenth Area Fleet Force (!0X Special 271 h Spe ia l Biise Force Base dot Force 28th £Sth Bas« Fore Base not 5) Dei otivated 13th Guai d mil Force :s) TO 25th Ease Force/Second Southern Expeditionary Fleet ISUZU (25) (20) NANIAI y Halt Attached To Second Southern Expeditionary Fleet OP* i 1 o fi d rs h- P P m CM o sa < § C c 5s 43 -u fR BU n s CvJ DE C » o E-" ss o o p ID CO CO f C I OJ p § 'is i ° B •H CO t-i C4 P o ID in J.0 0 fl ID E-< O OJ OH T o II 1 gg 1 ) P IB r eg | MA Y eac t fB B3 o p P o MA R (D Q ~| •a 03 i _i „. „•£ g-t IT 0 p o rr CO o v r-l o a Vl •o 10 *H o < Cc ID O ID B rl IT £ ra ED t ti4 « h> IV a K r PD ff) 0 n 19 4 I o P 4= o rH _^ h n 4- (C to a) W M < JS W o IS 4> o < r a. ^ fli A3 ID p e ^ ^- to « to -S CD - Third CHU A Eaped . fleel saoti rate 1 rWATE . 415) ro K ]RE K av. DLat. Third CHINA KIJI (15^ 110) T) TS1NGT A I Area Sp »eia . BasB Fo:ce/ C UNA Area Fle< t Expe di t ionarj llthTOTjje-i Fleet ao Boat v£r, -(15) )eact ivat »d SHORT MARtH Po TSING T ,0 At ea S >eci 1 Ba se F< irce/ 1HIM . Are1 Fl « t NIHONKAI WART3 (15)- •Bam [10)1 TSINGTAO Area 1 Deac ed Sp. Base Force =(15) ;iya1 3ING •AO ( l»2 Sa5« ?a te HAINAN Nai . Gua rd D .St. 0' ORI )To 3d Si rfao B Esior t Divii ion/ Four ;h F3>e t HATAI OSA (IOH- SASEBO 8tl Sv. !Iav. .andi ng Ulit CHINA 15th Guar< Uni t Area 16th Guan tail t Fleet HAINAN Cam .Phi th A .r Gi )ead ivat ed ( 1) DeiOti D ated YTJI tN A .r Gi oup ( SHANGHAI Ar H.TAFJ mi OKI TSU( 10) R< move a SHANGHAI Area •a Na dinpj Base Force IAJ i r. Lai tMt o CK NA Ar e a 'leet CHUSHAN I! .Gua rd u ait NANKING Gi Lard ttalt 13th Conv< rtec Gun Doat Divi sion Deac tiTO ted 14 th Convi rtec Gun soat Divi sion 10) D»act •vate d NIHONKAI 1 &RU *I5) Po Tlir d 3HIN* Exp d. 1 leet 1s t Convei •ted Koto r-Gui boat Dir! sion - eacti Tate i 2d Conver ed Votor -Gunl oat Divis 1on 1 SHANGHAI I arbc T Ma 3ter a Of fiee TWIT 1941 1942 1943 1944 1945 IGNATION OTC JAN FEB MAR APR MAY JI B JUL AUG SEP OCT NOV racJAN FEB MAE APR MAY JTJL AUG SEP OCT NOV DEC JAN MAR APR MAY JUN JTTL AtKJ SEP OCT NOT DEC JAN FEB MAR APR MAY JI3N JUL ATO YAN( irea Spec lal I ase ore* SWA 110) I emov ed UJ I 3) Tc SH&J IGHA3 Are a Bas e Fo pee TIIMI Gunt aetD To) I eaot S.vat< d s 3MIHA > SETA El 9t Gl tnbos ; Div YANGTZE K TATA Area Special HOZU Base Force 22 d Gui boat Div. eact .vat« d HIPA TAMI 23 a GUI boat Div. F JTAfC T, LTAPJL ;h G\mboa t Div KAB T3MI ( KIDK IANG Guai d m .t CHINA T£ INGT AO AT ea S >ecia 1 Ba se Fcro e Area TSINGTAO KI.TI TO i 4t h 5peci al Base 'oroe /Seo< OUthi rn S•jcped, Flee t Fleet Area Specia l Base ?orce S] fURI MARTI no) aemov« sd RTHO1 IKAI MARU I) To Nav. Wlni itry Bupp. y ?o roe SHANGHAI ! peoi ii yii v. La idin^ ; mi t {To SHAN SHAI Area Base Fo r e) mmmm To K IRE Tain ing livia ion To "S ANGT E AJ ea S >ecia 1 Ba is Po roe MURO MART> 'o Co nbint d. Fl se t HAKUSA m I) To 3omb ned Flee Attached r Gr .2561 h Ai mp )eact ivat id i24tl Con i. TJn: t entr al CI 3NA Airf .eld 213d Cons .mi LSV 144 r< ,ns. S li p 0-14 4] ( l>U» ( ,fS7 108 - 47 PART ORGANIZATION OF THE NAVAL AIR FLEETS TBJIT 1941 194S 1943 1944 1945 DESIGNATION DEC JAN MAR APR MAY JUN JUL AWJ SEP OCT NOV DID JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC JAN FEB MAR MAY JUL SEP OCT NOV DEC JAN FEB MAR APR MAY JUN AUG First Air (Conbintd Fleet) (Imieria L Gensral Head" ombiied 5 {Southwest iixea fleet ined FleeL) Flee t *= 114) Dead ivatod First Air VI eet ( uart' leet) nted 1st Carri T P i Tig JO II 114) To Tlira ]fleet 'C omb ine a Fleet 1st Carrier AKAGI 414) To Tlira 71eet Division KAQA move 7th Dest.: IT is .10) "O 10 ;h Deist. Sduadrcn/FL'st A|ir F]jeet 2d Carrie: Division 114) To Third 1 fleet,'C omb ine d Fleet 2d Carrier SORYU First 5th Carri* rjDirtsloa Deactivate d Air SHOKAKU 5th Fleet Carrier ZTJIKAKU To Is t Ca: Tier DivlBion/Thirc Division (20X14) 0B0H0 (10) To 1 Na r. Dis do) To li)th D|est. Tjivis^on 101 ih De; it. So ([Olr-r—t^c a. tl4)l NAjkAHA 10th tio> Destroyer -,h De;it. DiT, To Third Fleet Squadron j.7',h De it. Dir 7t)L Des••„ Div II 0> To Ccmbinnd Flaet £61i t Air Gro ip 61st AH Flo ,/First Air Fleet •lot/l'irst Air fleet Flot/Flrst Air Fleet Air Flot/Firs; Air Fleet Grout (I5MDJ - 4B - 49 1945 UNIT 1941 1942 1943 1944 DESIGNATION DEC JAN FEB MAR APR MAY JON JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG 26th Air Flotilla Air Group (10! To Fi: s t Air Fletet Olst Air Group (!0)\ Deaet vate 51st Air Group 10) f !t...jblllipO p Ines 15) Deaot vate<3 (15)2 Ajfld. (15) sntra . Philippin as Af Ld. unit 26th (15* Phljlippi^ea AT Air th Sj Base ,Foroe/Third Flotilla West C irolices Afld TJhLt rn 1 pea. (5)141st Air Group ,155d Air Group , To Sc uthweist Area Fleet gplst Air GroupH8 ) 221st Air GroupK8 ) 343st Ait* GroupK8) 761st Air Group d Air Groui) =,371 GusJrd First Air ^ Group Fleet Sclst Air Gr< t.o)37£lst Air Gnup 1C 2lst Air G:*oup <5) To 10is'; Air FloU/fCombiaed F|Leet 141st Air Group o 26th Air Flo! Air Fleet 221st Air 341st Air Groui 634tli Air Grouj (20) Co FiJ'th Air Flest 763d Air Groui ,152 Air Group —(153 035 11 AirGroup 5)De tivat ed 2p5jh AiJt Grou To 9th Aar FloVTakao Nan -(15) Guard Dist 765th Ai4 Grou -(15) 1st To Third Fleet Attached <5) To ComMned 'leet 1021 rt Air Group (20 (10) Ai signed dir ectly to Fi.rst j ir Fleet - 5o UNIT 1941 1942 1943 1944 1945 DESIGNATION JAN FEB MAR APR MAY JUN JUL AOG SEP OCT NOV EEC JAN MAR APR MAY JO) JOL AUG (Southwest A3? a Fit. Court ine d Fl «t• \ Second Air Fie (Coaftlned Fl.eet) 8) De 21st ciot 8181. Air Fl Air Fit tilla 25th =[i5h Air Han! el Islaids Airfield tta.11 Third i.ir Flee; Flotilla ushu A?i field Ul.it (is 15) A.ir Group Second 141st To First Air Fleet £21st Group Air 322 d Air Group (15 10) Deac tivated Fleet 341st Air Group 8) To First Air Fleet 345tll lAir Group 361st ft.ir Group 52£d Air Grou D« activate d 524tt ii r Group 541st A.ir Grot p tl 76 2 d |Air Group 1) To Conbin'ed I Leet IQ&d AirGl <8> To tlolst Ai|r Flot/Combined Fleet g liu Airfield 25th Ai f Flot/Sfecond Ai* Fleet (10)1 , Air 634tt Air Groi .p To First Alir Fleet 148tb Attached ted 186t|h AA UaiU5 138th AA. Third Air F3set 25th Ai) Flotilla (i5 410) Eeajctivatec 25th Nai^sei Islands Air ield Un <|O) Air Kyishu Air ield Un: t (|5> *0) Flotilla Fifth Air Fleet 203 d Air Gro 0? (15) Third 701st Air Gro ip (151 410) Air 343 1 Air Gr>u p (25)i 27tt Air Fltillc a Air (Soathern) la .andg Airfield 13!lit Flotilla (10 vated (20*Iro Jima c uard Un:.t - 51 QUIT 1941 1942 1943 1944 DESIGNATION JAN FEB MAR APR MAY JUN JUL AtlG SSP OCT NOV DIE JAN FEB MAR APR MAY JUN JUL AUG ,13th Air Fl< tilla SuzuJa Air iroup pi A:x Grou 13th Tsin; ;tao Aiv Grouj Air Flotilla o Air ij-roup NoJ Air Group ,Kash: ma Air Group Ho. 2 A r Grou Ai:: Grouj 53d Air Flo 53 a 210th Air G:?oup Air Toyot ashi Ai : Grou] Flotilla enth Air Fleet •(3)J 2d Air Group (31 71st Air LTsukiba Mr Third Flotilla 5Q2d Air GP 252 a Air GP(3)— Fleet st Air Group & Air •roup -(3) To 1st Air Flot/Third Air Fit. d Air ; (10); ro up st Air Group •(20) To Gee eral E oor t G )mmand (io)2 to Air 'ield l (15)-£10th Ai r Grou (5) To 3d Air r Fleet 1025 (i) Air G: a 34J tivat' (10! (5) To 'lfth A ,r Flee 60 Group (10) st Air d Air roup •(20) To Con.bined Fleet 706t)L Air Group 5) To ai Ai: field lnit!20) Kink Airfi id uni . (15)" 04th C instruction Unit (20 V .(30) Deativate 169ta AA OS i-05 t ) 201s t AA Tinit (15) AA TJn Deacti •(15) •(15) ukuba .ir Gro IP (20) -(5) 71st Ai r Floty Third Air Fleet ih Land L«pot Attached (15) Trans. - 52 UNIT 1941 1942 1943 1944 1945 DESIOTATION JAN FSB MAR APR MAY JUL Fifth Air Fleet/Combined Fleet 12th Air Flotilla .Tokushlma Air Group up (5* Air Gn .,Kannon.1i Air Gro up 12th .Saijo Air Grjup Air ..Iwakuni Air Iroup Flotilla .Tsuiki Air Group _.Hakata Air Group .Isahaya Air ?roup Kwanju Air G ca p Pusan Air Grup (5) ,Amakusa Air •roup Fukuyama Air Group iia Air Flotilla 72 d 3d Air Group Air 3d Air Group Fifth Flotilla (25)-3 ;5Sd Air Group 53d Air Fl 3 52d Air Group Fleet Air (25 > Fleet -2d Air Flotilla 32fl Air 634th Air Group Flotilla 762,d Air Group 931st Air Group no; Kyushu Ai rfield Unit I s ,an<3s Airfield li t do: Deactivated £Q3d Air ? (10 25)"o 7£d Air Plot/ ifth Air Fleet (10 701st Air Group (10 721st Air Group 762d Air (10 i-roup 13) To 32d Air Flot^ifth Air Fit. (10 801st Air Group 1022d Air Group <5) To 101st A • Flc 9Sli!t Air Group 13) To 32d Air Flo ./Fifth AirFlt. (20>. Tak ma Air Gro up • 171st Air Grou) 343d Air Group (5 72d Air Flot./ ifth Air Fleet San'in Airfield Unit (5) Jjaikaj Ai:-field Unit (10) 634 ;h Air Group 32d Air Flot/Fiftii Air Fit. (10)Chosen (K irea) Airfield quit .12th Land Trail i. Depot Attached Land Trana Depot 32d La:id Trans. Depot - 53 UNIT 1941 1942 1943 1944 1945 DESIGNATION JAN FEB MAR APR MAT JUN JOL ADQ .Tenth Air FJ eet/Combined 11th Combine fl Air Group (l)= 45) Deactiva ,ed Kasumigam a Air Group (!>• ^5) To Tenth Air Fleet Tsukula Air Group (!>• <2O) Third Air iiff l.ee t Yatale Air Groupd) *|{ To Tenth! Air Fleet Hyakurigahaia Air Group (i). Air Group (t^ •<5) To 53dAlir Flot/Thir< Air Fleet Hth Kashii a Air Group (i)" <5> To 13th [[Ai r Flot/Thiifa Air Fleet Combined Kitauia Air Group (!)• Deactivated Air Otf u Air Group (!>• To Osaka Nav. Guard Djst. Group Jinmacl.i Air Group (!)• Koriyama No, 2 Air Group ID- To Tenth Air Fleet Kowa No, 2 Air Group (!)• To 13th (Lir Flot/Thiifd Air Fleet Toyohasl.i Air Group! I )• To 53 d Air Flot/Thir Air Jleet Matsushina Air Group (IN To Tenth Air Fleet Yamato Air Group (I)" Okazakl No. 3 Air Group (i>i To 13th Mr Flot./Thiifa Air Fleet Tokjo Air Group (!)• •(5) To Tenth Air Fleet 12th Combined Air 1 Group (it Us a Air H5) I Deaotiva ted i Air Group (!)• Hime; Group c i >• *5)J Hakat a Air «(5) To 12th Mr Flot/Fift|h Air Fleet Tenth Group (l)a Omuita Air Group (!)• Deaotivajted Air Air Group (!)• •(20) To Tifth Air Fleet Tsuitfi Air Air Fleet 12th Group ;i). •(5) To 12th lir Flot/Fiftjh Fleet Air Combined Wonsen Group (!>• M.S) To Tenth Air Fleet Air Air Fuse a Group (!>• Air Group Iwakuzi Group (it- Air To 12th Air ^lot/Fifth Air Fleet Sai;< Group (|^ (5) Air Fukuyan a Group (i). Air lir Flot/Thii d Air Fleet Mineyana Group (!)• •(5) To 13 th Air Amekus a Group (!)• «<5) Ju Air 5 Group (IV •< > i To 12thAi r Flot/Fifth Air Fleet ft Air Kannon;f Group (i)« <5) Air Isaha^a Group (IV 13th Combined Air Group (^ Deactiva ted Ci Air Group (I) 13th C omt>ine a Suzuia Air Group (i> To 13th lir Flot/Thirjd Air Fleet Air Tslngteo Air Group (i) Group Tokushii a Air Group (i> To 12th Llr Flot/Fif^lh Air Fleet Kocyi Air Group (i> 15th Combined Air Group 15th Kasumigadra Air Group Combined Koriyama No .2 Air Group Air Jinmectii Air Group Group Wonsan Air Group Ou Airfield Unit Kasumlga ira Air Group To 15th Combined Air (l-roup/Tenth Air Fleet To; :yo Air Group '•5th HT Flot/Elfeventt Air - 55 UKIT 1941 1942 1943 1944 1945 DESIGNATION DSC JAN FEB MARAPR MAT JtN JUL ATXJ SEP OCT NOV DECJAN FEB MAR APR MAY JOT! JUL ATJG SEP OCT iNOV DEC JAN FE3 MAR APR MAT JUN JUAUI G SEP OCNOT V IEC JAN FEB MAR APR MAYJUN JUL AUG AKICAZE To 30th ion 34th Dest. Divis ion O Dea j ,1. TACTIKAZS Reiioved < ) To Navy Ministry upply For Kir To Savy ilinis try uppl For AKIMSU5H:3ilA (25 4) Tc th Air Fie GOSE U MAI U (24k To Combined 'leet Supply U4it MO&J! JIGA? A MAI :U (24)1 FUJIKAWA MARU (24)J To •Javy Vfinis try uppl For oe 16th Coi.s. Un:.t ictivated 23th Cons, toit th C ns. uiit 802 1 Air Groi I) To £2d Air Flot/E: even;h Ai r Fleet 'o 513t Air Flc lfth Air ?leet , 151 at Air Grcup 22d Air Fleet 958 th Ai : Group ,l)5th Air I bit Nortieaat Ares Fle< t/Conbine ?leBt) (Ccmbinod glset) Twslftt Air Flee-; 24th Air rloti l a =(20) Deactivated 24th 201st Air Grou) 15) To Eli it Ai:: Flo Air Flee Air 22a J.ir FLot/Elever th A Flotilla 552 Air Grou) - 56 5lst Air Flotilla yohaibi, Atsugi end ' sulk: Air 3roup desiimatec on 2 Peli as ii dicated.) fl Fleet 104 Soya 104th Escort Squaaron Ominato ] Guird Dist. STOEO ?U . Ku lies Area Base (5 peact Lvate 3 Twelfth t Mi (5K25 To omb ii e d Flee t KU fASHJtl 00) Air HA BIJO 3HTMHSH0 Fleet <25 J) 104 h Sso^rt Sq/proina to Nav. ETORi Giard (23) &1j Kuriles KASA])0 Area (25' Base KAI Re mo ed 3d PT Bo t Grc Force up \8) 51s Qua] d Ofr: 52d Guar Uhit KI8) .55d Uni1 To ominato Nav. Guard Dist. (20 57th Suard tinit 151 Trauspor Gro J3hu mshu Com. 2d At- Gro )Eea Hok to Alrfiel Oni Param ishir Comi;unioationa Unit KD To a Bas e For so/Rorthea t Area Fie it (Re Lesigrated 3HTJMU5HU Comm. IS it) 9th AA •nit (10) Eeact Lvate Attached •05) 11th Lt (2C DCeactivat th Unit (5M2O! To Thir Sout xped tiona ry Fl th AA Ohit (3W2Q 1942 1943 1944 1945 TJNIT 1941 BESIGNATION JAH FEB MAR APR MAY JTN JOT, AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JTK JttI AUG OCT NOV JAN FEB MAH APR MAY JDN JUL AUG Soutl *rest ire a o-ieet Comb: ned Ileet) [Ten th AT' Fleat/C' nbineil Fie it) ThirteenDh Ail Fleet (20) A! (20): r Flotilie 15) Dsactirated 753a 1 ir Gr ou p 23 a (20) Air Jl r Gioup TO Firs i Air Fleet Flotilla (20) 153d Air Gjroupfi Goh rth ( Aus bra Hi i) .38181 Air Air quit (5) To Thir ;eentl Air Fleet th Jir Flatilla (15) Deaot ivate To && AH Flot/Fourth Fl 28th (20> Air group <20) Air '05th Air C roup Deactiv ted Thirteenth Flotilla (15) st AI Grou Thi •teen!h Aii Fleet Air Fr< noh I do China A .rfie T Fleet Malay A .rfie d Jhitii5> Date Indies A .rfie d Tftiit{|5> Malay Airf; eld unit ^1 it To 28 ih Ail Flot/Thirteenth Air Fleet Eastern ch Indies .irfl Id Ur (15) 936th Air 9 56th Air G3oup Group 73£c Air Grouj 5)To ALr Air 381st Ai' Gro 1 Air up H } TO 23th ir Fl' it/Thirteen* Ai '(I5)i lO2d Air iase Tihit ctiTO ed .103d Air aae Ihit Attached . 104th Air Base unit «i) Deaotiva e d 11th Air Groi (20) f) Dea tiva ied l£th oup (20) * 1-5)1 13th Deact Lvate (20) J 1 oup (20 31st (Ceitral Pac. Area FfLeet/ Cbi Fleet) I'ourteenth Mr FLeet 22d Ail Flot LI la Air G: E2d oup 30lat Air G oup Air FiD t Air Flee 503 d Air G oup Fourteenth Flotilla 551st Air Group Air Fleet 755th Air G:oup 26th 26th All Flot ll a Air 201st Air Group TD Fir3t Ai:- Fleet Flotilla 50lst Air Group •751st Air Group 802 d Air Group ted Attached otiva AKITSTJSIIMA To Ccmbine d Fleet - 59 PART W ORGANIZATION OF THE GENERAL ESCORT COMMAND - 59 1943 1945 DNIT 1941 1942 DESIGNATION JAN FEB MAE MAY JtTN JOL SEP OCT NOV DEC First Escort Fleet First Escort Fleet Sscort Sq./General mffiDG First Escort Fleet Coast Defense Group First Sscort Fleet Defense Group First Escort Fleet scort S mand First Escort Fleet Escort Sq./General £mnaDu To First Escort Fleet 1st General Coast Defense Group Escort Surface Command Sscort 1st Coast Defense Group Div. First Escort Fleet 1st Coast Defense Group First Escort Fleet 1st Coast Defense Group To First Escort Fleet To First Escort Fleet oved First Escort Fleet First Escort Fleet '-2(Pat-ol icket Boat Sq./ S Fleet . Guard Dist. - 60 - 1945 TWIT 1941 1942 1943 1944 DESIGNATION JAN FEB MAR APR MAY JUN JUL AtJO OCT NOV EEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOT DEC JAN FEB MAR APR MAY JIN JUL AUG 21 Surf a e Esc rt Divisioi (15): Dead vate 1 YUZUK: (l5M3pj_To 3 th De troyer Divi slon (15) Remibved I amoved :i (I5* 3) To Yolsosuka Nav. Dist, FJKUE (15V D) To Ominato Hav. Guard Di t. ,H :RATO .M3CURA To Is t Sur ace E scort bivisi ... IMAKUSA 2d (201 To Yokosuka ITav. Diat. Surface MA.W.TU Escort (30> To C'lmbine Flee Division CD--12(Coai t Def nsealip 08) To Yolsosuka Nav. Dist. (18) To Ominato Nav. Guard Di SD-2 (30 SD-3 CD- 6 (5) •(18) L To 3st Surface Escort Divis CD-16 (25) ^18) (51* -(18) ,H [YODORI (15) 18) To 1st Surface Es|cort D visio: O'"OHI 18) Rem CIIOTK MA! V (15)* I) To i2d Pi;ke t Boat Sq uadro: /Kortbeast Area 7, set 101st Estsort !iquadraniis KASHI1(I5 General 101st Escort Escort DAIPO!I5> To First Esc art PI set 3 quadron CD CD TA: TO (10V noved (10OE 0 i(iO)Rajioved ,,KA: YO 00) First Escort Flee (201 (iO)«enoved , ; KASH: (25! •(15) T1 i 101st Escor t Squairon/Gsneral Escort C .ad CASHMl (15X25) To ure Training Division TO First • .90 st Ai Grou Escort Fleet iS( cor • 05). fl eet ,951at Air Attached tlO) Tc First Escort Fleet (20> 55d A .r Gro^p actiT ited aoist J ,ir Grc up(20! Dfactivated ubmar Jje HA 106(30) 33d jabm.D TOKIWl H0> K0EY J MARTJ EOE: ' MARTJ IINOO 3d, let, 2d th k. Sth Co ivoy scort 3 ^101" Ee|actiTa|ted 5t hft7 b. Convoy Bssorts j-Tc First Escort Fleet Sth C Escort mvoy - 61 1942 1945 tR.IT 1941 1943 1944 DESIGNATION JAR FEB MAR APR MAY JON JUL AUG SEP OCT NOT DEC JAN JEB MAE APR MAY JIM JUL AUG 4th Surfaie Esccrt Division dot 10) Deactiva ed 1 ..MI 00) Re noved TOi'OZURTJ (.01. MAJAZURU (10) 1 SAS1B0 4th (10). Removed Heval Surface (10)i (101 I Escort Ch-49 {Submarine Chaser Ho.49) District Uvisiot do: (10) Ch-58 i 5th T peoial Attack Squad) on/Sasebo (10) va l D3 strict 2oast lie ferns e Ship 1 to.501 (25.(r-s (10) Tk Osake Naval Guard Dist. 0K]BAWA A:Lr Group Deactivated Surface Es< ort Division (20) jteiaoved lOMAHASHI (20) (15 Jil YOKOSUKA 3d ^Specie1-Atta k Squadron/Y' kosuka Surface biatric- JSAve.1 h-14 Diatriot Escort (20) Divisioi (20> (20 (20' 112th Subchi.ser Di dsion pecia -Attac Squa on/Yoi ostika [3e Defense Lstriol (20) General Esctirt Com nan d (15 Kov 43) Fl'st Escort 10 at Esc art Sq ladron vated KAJHII 5 (IO> TSUSHIMA ,20) Remove 101 at (IO> *25)1 Escort [10* 3quaaron •(25) [ To Fjrat Es sort Fleet (I OktK'ET J SZ (10) CD- (10) 51 R amoved 3enera]lFirst do) CD- Esoart Escort ;cnm-£d Fleet 102 a Sscort Squadran 5) Dea tivate . KA5HIMA 5) To Irst E 3cort leet |; YASmiRO CD-S (5) \ To 2d Coa3t Defense Group i <5) lO2d ' MIKIBIA Beeort .CP-53 Removed Squadron (I 10) Rpmoved .CP-29 (25 25) TO asebo lav. Dist. I.CD-41 (25 •45) To irst E soort leet i •^5) 'JANJU (25 To 2d Coast Defease Croup H0DAKA(3> HABOTO (fO> TKIT 1941 1942 1943 1944 1945 DESIGNATION JAN FEB MAR APR MAY JUN JUL AUG SEP OCT AIXJ 103 a Eaoort Squadrac ,h Fleet 105tfa Ssoort General First Esco r t EscorSecortt Commend Fleet anToy Escort roy 3onvoy Ssoort x Fleet Seventh! Fleet - 63 1944 TWIT 1941 1942 1943 1945 DESIGNATION JAR FEB MAR AH! MAY JUN JUL SEP OCT NOV DEC AUG N0M1 KIME iSHINNAB C|D-E(Coa|st Defejnse Ship No.2) CD-6 CD-9 CE-13 CD-I! CD-IE CD-2C CD-2J CD-2S CE-2C CD-2E CD-3J CD-S3 CD-34 CD-3E CD-39 10) Ri moved CD-52 CD CD-64 CD-6€ eneral First CD-11 £scori scort CD-13J Fleet csmsnc CD-13E SAG1 HjlYODORI r-L7(Mine sweeperj NO.17) W-1E 33(Patrol Boat No.38 ) 9pist Aljr Groui CD-60 uadron/Maizuru Nay. Diat. ttoit ron/?lifat Escort Fleet at Escort Fleet Squ« dron/FI rst Eaoort Fleet ./F: rst Escort Fleet e Grou ii se Gro - 64 1941 1942 1943 1944 1945 THIT DESIGNATION JAN FEB MAR APR MAY JTK JUL AUG SE P OCT NOT DEC JAN FEB MAR APR MAY JUN JUL AUG CD-1021 Coast defense Ship R .102) )i mo) TO Sevent Fleel VTTPJ1 To 12t Def Grou] C -106 5)n •(10) To Seventh Fleet D-12 5*— — —(20 ) ro Maiz xru Nai Diet. J-OX Remove dron/Fi at Escort Fleet Iff! YAKE 10 XU d Escc "t SquE 31st „ . . _ . 19(Sub 0.19) DBL ser 1 h-20 1-21 1—60 First 1-26 Escort ittachs< Fleet CD-104 KIO) To Sevent Fleet CD-I 4 (23*. MIO) To Sevent Fleet CD-2 .3 (23* To 10 d Esco rt Squa dron/Fl st Escort Fleet TSOSH [MA (25) ——(25) j General I To 22 . Coast Defens s Group Escort DA TO (25) II'"|| (25) Ganmand UK MU (25) —<25) CD •27 (25) "-(15) T J> 21st oast E efense Sroup CD-65( ) 15) TO 1 )5th Es ;ort Sq uadron OJUCA i5*-M2S) ] CD-59 (5)—425 [ To l )3d Ssc art Squ adron/! Lrst Escort Fleet CD-192 (20X25 ) >.39) (3 Mines? r-41 (3 101 it Air flotill (Tran •) (15)= Nav y 101st General attached Air 1 )Olst A r Grou 3 (15*- Dctnmsm (Trans L0£2a A r Grou 3 (15* 1 )81st A r Grou ) (15* mm—m - 65 PART Y ORGANIZATION OF THE SUBMARINE FORCES OHGANIZATIOS AS OF 1 HOVSCBSE 1941 CHAK5SS 1 3 (BGAOTZATIOff, 1 W0TS?E3!R 19 1 * ! 1 FEBRUARY 19^2 KATAL BISTHE T CCBVSBTZD SHIP OF COtfVERTSD SHIP UHIT msiamsias SHIP AlfD SUBKAHfflS DIVISICH OR OR DATS SQTTAIlROir SHIP AND SUBHARHra BITISIOS SPSCIALLT ESTABLISHES FORCE SPBCIALIY BSTABLISBED FOECI KATORI 6 Hov lH I 26 assigned to ^th Sutimaritie Division. 1st Submarine Division Cl-15, l-l6, Uli) TA.IffSI removed fron 3 Sixth I 9 1st Submarine Division and 3d Submarine Division removed from 1st Submarine Squadron and, Jan 1*2 £•10 removed from 2d Submarine Squadron.,and all placed under tactical commend 7th Submarine Division (l-l, 1-2, 1-3) of Sixth Fleet. 2d 8th Submarine Division (1-4, 1-5, 1-6) SASTOS HAHIT TCKOSTJKA 15 Jan U2 1-7 0 eunfc and removed from 12th Submarine Division. Submarine Squadron 1-7 . I 10 Sleet 1st Submarine Division reorganized with X-l6, I-1B, 1-20. TAIGBI 2d Submarine Division reorganized with 1-15, 1-17, 1-19. 11th Submarine Division (1-74, I-75) 1 Feb Us 3d 3d Submarine Division reorganized with 1-21, 1-22, L2U. 12th Submarine Division (1-68, 1-69, 1-70) Submarine Squadron !»th Submarine Division reorganised with 1-23, 1-25, I-26. 20th Submarios Division Cl-71, 1-72. 1-73) I S Kiinj 4th 18th Submarine Division (i-53 , I-54, 1-55) Combined Submarine Squadron 19th Submarine Division (1-56, 1-57. I-5S) NAOOTA HAEU KURE 21st Submarine Division (BO-33. B0-3U) TOEA fleet 5th 28th Submarine Division (1-59, I-60) MDIEJAHZIRO HABIT SASBBO Submarine Squadron Sth Submarine Division (I-62, I_6>*) 30th Sttbmarine Division (I-65, 1-66) CHOOBI Third bib 9th Submarine Division (1-123, I-121*) fleet Submarine Squadron 13th Submarine Division (1-121, 1-122) JISGBI SO-60 ran aground and removed from 26th Submarine Division. fourth 7th 26th Sabmarine Division (BO-60, RO-61, RO-62) 15 Jan U2 RO-66 sunk and removed from 27th Submarine Division. fleet Sabnarine Squadron 27th Sabnarine Division {EO-65, EO-66, BO-67) 33d So-boariiB Division (HO-63, HO-64, HO-63) KlffiB 6th Submarine Division (BD-57, HO-53, HO-59) Jteral District I 52 - 66 OBGAHIZATIOH AS OF 1 FEBHJAHT 19^ 2 •^ CHAiaiis is ajTrAirizATiar, 1 rsBRTjAHT 19^2 - 10 MABCH 191+2 5ATAL DISTRICT COSViKl'JSD SHIP 07 COS''!flffTO SHIP UNIT DBSIGHATION SHIP A5D SUBMARIHB DIVISIOH OB OH DATI SqSTADROlT SHIP Aim STOKAHIHS DITISIO* SKCIALLT SSTABUSHBD FORM SP3CIAUT ISSTAStlSHBD TORCS KA.TOBI 6 Iteb U2 1-26 assigned to Sixth neet. let Submarine Division (l~l6 , 1-18, 1-20) 3d Submarine Division (1-21, 1-22, l-Zk) 14-th Sabmarina Division organized and placed under tactical command of Sixth fleet. I 10 2U Iteb U2 1-27 and 1-28 assigned to lUth Submarine Division. 2d Submarine Divisio n (1-15, 1-17, 1-19) Sixth 1st Uth Submarine Divisio n (1-23 , 1-25. 1-26} HBIAK MAETJ IOKOSDKA 27 l»b U£ 1-2 9 assigned to l^th Submarine Division. Submarine Squadron I 9 Sth Sabmarlna 1st Submarine Division, 3d Submarine Division, lUth Subnarine Division and 7th Submarine Division (1-1 , 1-2, 1-3) 1-10 assigned to Sth Submarine Squadron. 21 8th Submarine Division (.Uk, 1-5, 1-6) SANTOS HAEU TOKOSTOA Squadron fleet Submarine Squadron HIE MARTT assigned to Converted Ship force of 8th Submarine Squadron. organised and I 7 10 Mar 42 1-30 assigned to lUth Submarine Division. 11th Submarine Divisio n (l~Jk, 1-75) assigned to 12th Submarine Division (1-62, 1-69) Sixth Fleet. 1-73 sunk and removed from 20th Submarine Division. TASTJKTOI MARTJ TUBS Submarine Squadron 20th Submarine Division (1-71, 1-72. 1-73) 1-8 XINU 18th Submarine Division assigned to TUBS Kaval District. Uth Submarine 1 iHh ISth Submarine Division (1-53, I-5 *. 1-55) 19th Submarine Division assigned to 5th Suomarine Squadron. NAGOY*. MARTI KUOT 10 liar 42 Squadron Submarine Squadron 19th Submarine Division (1-56. 1-57, 1-58) 21st Submprine Division assigned to Sth Submarine Squadron. C cabined deactivated. 21st Submarine Division (BO-33, E0-3U) KVSTJ assigned to l6th Squadron. fleet TOHA 5th 28th Submarine Division (L-59, 1-60) 1-60 tuok and removed from 28th Submarine Division. ODDS JANEIRO MASTJ SASTBO lOlfer 42 Submarine Squadron 29th Submarine Division (l-62 , I-&H) 29th Submarine Division deactivated: I-62 assigned to 28th Submarine Division and I-SU to 30th Submarine Division. 30th Submarine Division (L65, L-6b) I-12U sunk and 9th Submarine Division deactivated OHOGEI 25 Hsb kz 1-123 assigned to 13th Submarine Division Third 6th 6th SubmariiK 9th Submarine Division (1-123, 1-12*0 21st Submarine Division assigned to 6th Submarine Squadron. Fleet Suboarine Squadron 10 Mar 42 Squadron 13th Subm rine Division (1-121, 1-122) transferred to B Coobined Tlset JINOSI 27th Submarine Division deactivated and, Fourth 7th 26th Submarine Division (EO-fal, RO-fe2) 10 !teb U2 Fleet Submarine Squadron 27th Suom&rine Division (EO-65, H0-b7) HO-65 and RO-67 assigned to 26th Submarine Division. 33d Submarine Division (RO-bj, RO-64, RO-68) KIRS 6th Submarine Division (KO-57. RO-53, BO-59) Teb U2 RO-31 aesignsd. 4aval District I 52 10 Mar Us 18th Submarine Division assigned. - 67 OEGAHI ZATION AS OS 10 MARCH 1942 UHAK6SS IH ORGANIZATION, 10 MAHCH 19^2 - I 1 * JULY 19te KAVAL DISTRICT OOHvTSTED SHIP OF C0HVSRT3D SHIP OHIT DSSIGNATIOH SHIP ATO SUBMARISS DIVISION OH OH EATS sqtiAmoir SHIP ATO SUBMARINE DISITIOIT SPECIALLY 3STABIISH2D FORCE SPHCIAELY 3STABLISHSD FORCB 20th Suomarina Division deactivated, and 1-71 and 1-72 assisted to 12t& Submarine KATOHI 20 Mar ^2 Division. 13th Submarine Division removed from 6th Sutmarine Squadron and placed under 2d Submarine Division (L15, l-H, t-19) 10 Apr U2 tactical command of Sixth Fleet. let 1-23 sunk and removed from 4th Submarine Division. 4th Submarine Division (1-23, J~£5. 1-26) HSIAN MAEU YOKOSTJKA I-S transferred from 34 Submarine Squadron to 5th SuBmarine Squadron. Sahnarine Squadron. 16 May ^2 I - 9 1-11 assigned to 3d Submarine Squadron, 15th Submarine Division (l-31, 1-32) organized and assigned to 1st Submarine 30 May k2 Sbcth 7th Submarine Division (l-l, 1-2, 1-3) Squadron. 2d Sth Submarine Division (1-4, 1-5, 1-6) SANTOS MARU YOKOSBKA Submarine Squadron I - 7 10 Jun k2 1-33 assigned to 15th Submarine Division. 11th Submarine Division (1-74, 1-75) fleet 15 Jon U2 1-28 Bunfc and removed from 14th Submarine Division. 3a 12th Submarine Division (1-68, 1-69) YASTJKTOTI MAHU KTJHB Submarine Squadron 20th Submarine Division (l-71, 1=72) I - g 1st Submarine Divieion (I-l6, I-1S. 1-20) Sth 3d Submarine Division (1-21, 1-22, 1-24) lU Jal 1+2 13th Submarine Division transferred from Sixth Fleet to 7th Submarine Squadron. H B MARTT YOXOSUKA Submarine Squadron 14th Submarine Division (L-27, I-2S, 1-29, 1-30) HO 28th Submarine Division deactivated, and I-J9 assigped to 19th Subaarine Division TUBA 6th Submarine and I-62 to 30th Submarine Division. 10 Apr Hz Squadron 13th Submarine Division placed under tactical command of Sixth Fleet; 21st Sub 5th 19th Submarine Division (1-56, 1-57, 1-52) Combined marine Division assigned to 7th Submarine Squadron and CHOCTI to TUBS ffaval MD DSJAS21K0 MARU SASEBO deactivated Submarine Squadron 2Sth Submarine Division (1-59, 1-62) District. 1-8 assigned to 5th Submarine Squadron. 30th Submarine Division (1-64, L-65, 1-66) 16 Hay 42 YDEA transferred from 5th Submarine Squadron to 4th Destoryer Squadron. Fleet CHOGEI 5th Submarine 30th Submarine Division, I-S ana RIO Dfc, JAWiilRO IttHU assigned to Scu-cmsest *rea 6th 10 Jul kS Squadron 13th Submarine Division (1-121,1-122, I-123) deactivated Fleet and 19th Submarine Division to KTJR2 ¥avaL District. Submarine Squadron 21st Submarine Division (EO-33, HO-34) Ik Jul U2 1-64 sunk and removed from 30th Submarine Division. JISGSI 21et Submarine Division transferred from 6th Submarine Squadron to 7th Sub 10 Apr U2 .Fourth 7th marine Squadron. 26th Submarine Division (HO-61, RO-62, HO-65, H0-&7) fleet Submarine Squadron 7th Submarine 33d Submarine Division (HO-63, EO-64, B0-6S) SquBdron trans 26th Submarine Division and 33d Submarine Division transferred from 7th Sub 1 Ik Jul Ug ferred to Eighth Fleet. marine Squadron to Attached Force of Fifth Fleet. KU&S 1 19th Submarine Division transferred from 5th Submariie Squadron to ITCRB Naval ISth Submarine Division (1-53, I-5 *, 1-55) 10 Jal 1+2 District. Saved District 6th Submarine Division (RO-57, SO-53, EO-59) I- 52 1-52, being obsolete, was desigwted a reserve ship. 14 Jal U2 HO - 31 RO-31 removed and assigned to YOKOSCKA Saval District. Uote) 20 May 42: lames of submarinee from 1-53 to 1-75 «re changsd to 1-153 to 1-175 inclusively. ORGAN IZiX IDS AS OF Xk JULY 19U2 CHANGSS IS OHGAWIEA? IOS, \k JTJLT 19^ 2 1 SEPfSMEEH i9U2 FATAL DISTHET CCNVEHTSD SHI? OF corrnsrSD SHIP OMIT 2ESIGHATION SHIP ASD SUBMARINE DI7ISI0H OH OR DATS SQTTADR05 SHIP AUD STBKfcRIira BITISIOS SPECIALLY 35TABLISHSS FOHCS SP8CIALLT ^STABLISHKB FORCE KATORl k hng kZ 1-176 assignsa to 11th Sntmarine Division. 2d Submarine Division (1-15, 1-17, 1-19) Uth Satnarine Division deactivated and 1-25 a nd I-2S assigned to 2d Salsnarine 10 Aug U2 Division. let ittb Satmarine Division (1-25, 1-26) HSIAN MAR? YOKOSTBCA Submarine Squadron 15th Satmarine Division (1-31, 1-32, 1-33) L-7 of 7th Submarine Division placed under tactical conaand of Siith Fleet. I 9 2nd Subaiarine 8th Submarine Division deactivated and I-U, 1-5 and 1-6 assigned to 7th Submarine Division. 20 Aug U2 Sixth 7th Satmarine Division (1-1, 1-2, 1-3) SJHT03 MARTI assigned to Converted Ship Force of KtTHS Haval District. 2d Squadron Stb Submarine Division {i-h, 1-5, 1-6) SANITOS KAETJ YOKOSIKA 1-8 removed from Soathwest Area Fleet and placed under tactical conmand of Submarine Squadron Sixth rieet. I 7 deactivated. 31 Aog 1»2 1-7 aselgned to 7th Submarine Division. 11th Satmarine Division (I-17U, 1-175) 34 12th Satmarine Division (I-16S, H69, 1-172) TASDKIMI KARtf KU8B fleet Submarine Squadron I 11 1st Submarine Division {I-l6, 1-13, 1-20) Sth 3d Submarine Division (1-21, 1-22, 1-2U) BE MAHU TOKOSTOCA Submarine Squadron l^t h Submarine Division Cl-27, I-S9, I-3C) I - 10 Fifth Attached 26th Sutmarios Division (RO-61, EO-62, RO-65, EO-67) fleet Force 33d Satmarine Division (EO-63 , E0-6U, RO-63) JINGEI Eight t 7th 13th Submarine Division Cl-121, 1-122, 1-123) fleet Submarine Squadron 21st Satmarine Division (RO-33, EO-31*) Southwest Attached 30th Submarine Division (I-I62, I-l65, I-l66) Area RID EG ASEIRO MAP.U SASKBO 20 Attg !+2 1-8 removed and assigned to Sixth Fleet. fleet Force I 8 CH0GE1 20 Aug 1*2 SAUTOS MAHTT transferped frwl 2d Submarine Sciasdron to Converted Ship Force of rTOB Haval District. KURS 18th Satmarine Division (1-153. I-l^, 1-155) jjaval 19th Submarine Division (1-156, 1-157. 1-158, 1-159) District 31 Aug Us I-3U, 1-35 mid RO-1OO aMigned toCTBSHava l District. 6th Sutmarine Division (HO-57, BO-56, HO-59) 1-3^. 1-35. BOJOO and SASTOS MAHTT 1 Se-p U2 organized into njR! Sobnarlne Squadron, TOKOSUXA RO-31 Javal District OEGAHIZATIOS AS OF 1 SEFESHBEE iSkZ CHAHGBS IN OWiASZZiXIQB, 1 Septembe r 19^ 2 1 Januar y 19V? HA7AL DISTEKT COtTEHTBD SHIP OT COI7EHTSB SHIP WIT DESIGSATIOH SHIP AND SUBMARINE DIVISION OR OR DATIS SQIJABRCM SHIP ASD SOTMABDfS DIVISION SPECIALLY ESTABLISHED FORCB SPBCIALLT SSTABLISEED JOBCt KAIOHI 1-33 sunk (accident) and removed froa 15th Submarine Division. 7th Submarine Division (i-l , 1-2, 1-3, I-U, 1-5, L-6, 1-7) 10 Hov U2 1-30 Eunk and removed from 14th Submarine Division, I-S 2d Submarine DiviBion (L-15. 1-17. 1-19, 1-25. 1-26) I-36 assigned te 15th Submarine Division. 1st Sixth 15th Snimarine Division (L-31, 1-32, 1-33) HBIAH HARtT TOKOSTJEA 1-172 sunk snd removed from 12th Sulmarine Division. Submarine Squadron 15 tec ^8 1-22 sunk and removed from 3d Sufcnarine Division. 11th Submarine Division (1-174, 1-175, 1-176) 3d Suomarine Division deactivated, and 1-21 and 1-24 assigned to 1st, Submarine 3d Division. 12th Submarine Division (L-l6S, 1-169, 1-171, 1-172) usvxmi MAEH KTJHS Submarine Squadron 2k Eec t2 I-15 sunk and removed frr>m 2d Sntmsrine Division. fleet 1-11 1st Submarine Division (X-l6, 1-18, I-2O) 8 th 3d Submarine Division (l-£l , I-£2, 1-210 31 Dec 42 1-3 sunk and removed from 7th Submarine Division. H B MAHtJ YOKOSUKA Submarine Squadron ll+th Submarine Division (1-27, 1-29. 1-30) L-10 25 Sep 1*2 33d Submarine Division assigned to KTO3 Naval District. Fifth Attached 26th Submarine Division (EO-61, B0-D2. Ha.65, HO-67) 20 Oet 42 S0-6l sunk and removed from 26th SuDmarine Division. riuet Force 33d Submarine Division (EO-63, BO-64, H0-6g) 26th Submarine Division assigned to KTJHE Haval District. 15 Hov k2 1-3^ and 1-35 removed from KTJBS1 Submarine Squadron and assigned to Fifth Fleet. L.123 sank and removed from 13th Submarine Division. JISGEI 5 Oct U2 Eighth 7th HO-33 sunk and 21st Submarine Division disbmded. 13th Submarine Division (1-121, L-122, 1-123) ileet Submarine Squadron Dec U2 RQ-101, RO-102 and EO-103 assigned to 7th Submarine Sqaadron, 21st Submarine Division (EO-33, HO-3^) 15tec te HO-100 assigned to 7th Submarine Squadron. Southwest Area Attached Fleet Force 30th Submarine Division (L-162, I-I65, 1-166) HIO US JASEIRO KARU SAST310 KtTRB U$k, 1-35. EO-100 Submarine Squadron SANTOS MAEU KDHS Sep U2 HO-103 assigned to iturai Submarine Squsdron. 30 Sen 1+2 I—36 Resigned to KTJR5 Submarine Squpdron. Oct 42 EC-101 and RO-10? assigned to K'JRS Submarine Squadron. KOBE CH0QS1 26th SaDmarina DiviBion transferred to K'UHH Uaval District. 15 Hov %2 Naval lSth Submarine Division (1-153, 1-154, 1-155) 1^3^ and 1-35 transferred from TUKZ Submarine Squadron to attached Force,KPfe Efeet District 19th Submarine Division (1-156, 1-157, 1-158. 1-159) 20 Eov 42 RO-65 sunk and removed from 26th Submarine Division. EO-101, EO-103 and EO-103 transferred froa KTJH3 Submarine Squadron to 7th Sub 6th Submarine Division (EO-57, BO-58, RO-59) Dec 1+2 marine Sqnadren, EO-106, RO-107, 1-177 end I-17S assigned to WB3 Submarine Sqaadron. RO-100 transferred from KTJHS Submarine Squadron to 7th Submarine Sqaadron. 15 Dec "+2 L.3S transferred froa KURt SuBmarine Sqaadron to 15th Submarine Division. YQKOSUKA Havel District SO-31 ,. 1 - 70 0RGASIZAII03 AS OF 1 JAH0ART 19^3 CHAITG'SS nr osr,ASizA?io!r, i JAHtrsHT 19*3 - l1* AFKIL 191*3 HA7AL DISTRICT COHYSETSD SHIP OF CCKTHTRTSD SHIP OS IT DSSI0HA3I0B SHIP JUJI StrSHASISB D IT IS ICE 01 OH DATS sQjJAiRcar SHIP AJTD StfflHARINS DITISIOS SPECIAL!! BSTABLISHSD F0RC3 SPECIALLY 3STA3LISEED IOTCZ 1 Mar ^3 1-h sank and removed from 7th Submarine "ivision. KAIOBI 7tfa Submarine Division (l-l, 1-2, 1-4, 1-5, L-6, 1-7) 11th Satearine W-rision deactivated and 1-174, 1-175 a ^ 1-176 assi^iad to 12th Salraarine Division, UZ 15 Mar h3 22d Submarine Division (1-177. 1-178, 1-120) transferred from RUSE Submarine Squadron to 3^ Submarine Squadron. 2d SuDmaria) Division (I-17, 1-19, 1-25, 1-26) let Slitb 15th Submarine Division (1-31, 1-32. 1-36) HEIAU MASCT TDKOSVKk Submarine Squadron 1-9 I-3U and 1-35 transferred from Attached force, Fifth Fleet to 15th Sutanarine Division. 11th Submarine Division (L-17U, 1-175, 1-176) 1-18 sunk snd removed froffl let Submarine Division, 3d 12th Submarine Division (I-16S, 1-169, 1-171) TAS"XTKI HAHU SUES 1-? transferred from the tactical coarsnd of Sixth Fleet to l^th SaTfflTine Submarine Squadron 1 Ax,r i+3 Division. I-11 Fleet 1-1 sunk and removed from 7th Sntmsrine Division. let Submarine Division (1-16. 1-13, 1-20, 1-21, J-2^) 7th Submarine Division transferred from the tactical command of Sirth Fleet to Sth Fifth Fleet. lUth Submarine Division {l-27, 1-29) HIE MAEU TOKOSTTA Submarine Squadron 1-10 1 Apr hi t~jih and 1-35 removed and assigned to 15th Submarine Division. Fifth At tacksd Jorca 1-3"+. 1-35 JITTSEI aeeigned to KUHE Naval District. fleet 5 Ja n 1+3 CH003I transferred to 7th Submarine Squadron. JISOEI iighth 7th 13th Submarine Division (1-121, 1-122) 15 Mar U3 EO-106 and EO-107 tranefarred froo VJSS Submarine Squadron to 7th Submarine Squadrcn Fleet Submarine Squadron EO-3U 7t t Sntm*rine 15 Apr U3 Squadron aasigned to Soutbeset HO-100, HO-101, EO-102, EO-103 South**it Area Attached 30th Submarine Division (1-162, I-I65, I-l6b) HIO DS JABSIRO MAEU SASSBO Fleet TOrce L-3S and 1-180 aseigned to KITES Submarine Squadron. 6th Submarine Division assigned to TOKOSUKA Haval District. KDBB 1-177, I-17S 15 Jan U3 HO-31 transferred from YOKQSmA Haval BUtrict to KTTRB Hsral District. SASTOS MAEtT SDBB CHOSE I assigned to 7th Submarine Squadron and Submarine Squadron BO-106, HO-107 JIITSBI transferred from 7th Submarine Squadron to XW! Saval District. EO-lOU assigned to HTKJ5 Submarine Squadron. CHGGBI 2 Feb 1+3 KOBE 22a Submarine Division (1-177, 1-178, I-1S0) organized anfl assigned to CTRS 25 Fab U3 18th SuDmarine Division (1-153, I-15^+, 1-155) Sutraarine Squadron. 5 Mar H3 HO-105 aEBigned to tuns Submarine Squadron, Save! 19th Sucmarine Division (1-156, 1-158, 1-159) 10 Mar 1+3 1-37 assigned to AUKS Submarine Sqia&ron. 6th Submarine Division (BO-57, E0-5S, HO-59) 15 Mar U3 22i Submarine Division aseigned to Ji Submarine Squadron. District SO-35 aseiened to KUHS Submarine Sqnaaron. 26th Submarine Division (EO-62, HO-67) 25 Kar U3 SAw^OS MAEU removed from, and TSTJK0SHI MAEIT assigned to. Converted Ship Force of KTJH3 Submarine Squadron. 33d Submarine Division (fiO-63, EO-6^, Efr-bS) JUBB Sabmarine squadron removed anc 1 Apr 1+3 iBBlgned to FSjst Flee 3fl, YQKOSUKA RO-31 assigned to KUPJC Uaval District. Saval District HO-31 Sth Submarine Division transferred from STIRS Haval District Unit to TCK0ST3KA ffaval District. - 71 OBSAHIZATIOH AS OJ Ik APRIL 19V5 1 CHANSBS IH OHGANIZASIOH. lU APRIL 19^3 1 JT7N1! 19U3 SAVAL DISTRICT COHTiEETED SHIP OF C0ST3ETEE SHIP mif DBSI&KATI01T SHIP AND SUBMAJUHS DIVISICS OR OE DATE SqUAIRON SHIP AND SUBMABIHE DIVISION SEBCLA1LY ESTABLISHED FOBCE SPBCIALLY ESTABLISHED PORCS KATOEI 2d SubBarlne DiviBioii (1-17, 1-19, 1-25, 1-26} 30 Apr H3 I-lg transferred from Tirst Fleet to 15th Submarine Bivision. let Sixth 15th Submarine Division (1-31, L-32, l-3k, L-35, L.36) HaiAIT MAEU TOKDStJSCA Submarine Squadron 1-9 12tfa Submarine Division (1-16S, 1-169, 1-171, I-171*, 1-175. 1-176) 3d 23 Kay »+3 1-37 transferred from First Fleet to ll+th Submarine Division. 224 Submarine Division (1-177, I-17S, I-lSO) TAS0KT3NI HAHU KtJES Submarine Squadron Tleet 1-11 le t Submarine Division (l-l6 , 1-20, 1-21, I-2k) I-g removed from lUth SuTsnarine Division and placed under tactical command of 6th 25 May 1+3 ll+th Sutmariae Division (i-S , 1-27, 1-29) HIE MAET: TOKOSmCA Bth Sttbmarinc Squadron. Submarine Squadron 1-10 20 Apr ^3 R0-1 Cg assigned. 22 Apr 1+3 HO-39 assigned. 1-37. t-38 H0-1C9 assigned. first 11th 30 Apr U3 1-38 removed and aesigned to 15th Submarine Division. BO-35 TSUKU5EI MAHU SASBBO 10 May 1*3 I-1S2 assignsd. Fleet Submarine Squadron BQ-1OI+, EO-105 23 Hay 1+3 1-37 removed and aEsignei! to lUth Submarine Division. 2U May 1+3 I-1E1 assigned. 31 May 1+3 KO-36 assigned. mth fleet Attached Force 7th SubBiarine Division (1-2, 3-5, I_b, L7) CH0GS1 Soutiieaet 7th 13th Submarine Division (1-121, 1-122) Area EO-34 31 Hay 1+3 13th Submarine Division deactivated. fleet Submarine Squadron 80-100, EO-101, EO-102, EO-103 SO-106, SO-107 Southwest 30th SabmariM Division (l-l62 , I_l65, 1-166) Area Fleet EIO D3 JAHSIEO MAHtT SASEBO JIKdSI 18th Submarine BiviBion (1-153, 1-15^, 1-155) KOBE 19th Submarine Dirision (I-15&, 1-157, 1-158, 1-155) SaVBl 26th Submarine Division (RO-62, EO-67) 33d Submariis Bivieion (fiO-63, BD-61+, 20-6S) District BO-31 YOKOSUXA fath Submarine Division (EO-57, E0-5S, EO-59) Haval District OBGAHIZATIOH AS OT 1 JUKI 19*3 CHAWJ8S tl QROUIZATIOI, 1 3TTB 19>+3 - 1 AUGUST 191*3 CCHTEHTSII SHIP IATAL DISTRICT WIT DBSIGBATIQH SHIP ABU S13BMAEIHK DITTSIOI OE or ccBtssraD SHIP DATS StgMUBOB SHIP HID STSBHAHCTS DITISIOI SFKIiXLT SSTABLISHZD TQBC! OS SPECIALLY SSf ABLISHIS fOBCS KATQSI 2d Submarine Division (l-17, 1-19, 1-25, I-26) 1-39 aeeignefi t o l4th Satmarins Divteion. lit 15th Submarine Division (1-31. 1-32, 1-34, 1-35, 1-36, 1-38) HBIAS M&Etr TOKOSTOA 20 Jn l M-3 Submarine Squadron EO-35 reaoved frca 11th Sobnarinfl Sqoadron and placed onder tactica l command of Sixth Fleet. Sixth 12th Submarine Division (1-168, 1-169, 1-171, I-171*. 1-175. I-17&) 3d 22d Submarine Division {1-177, 1-178. 1-180) TAsannri KABTT XUBt Submarine Squadron 1-11 fleet 1-31 wufc and removed frot 15th Submarine Division. 1st Submarine Division (1-16, 1-20. 1-21, 1-24) 1 Mtgh3 8th l4tn Submarine Division (1-27, 1-29. 1-37) HIS KiBtT TCKOSUIA TL?h soak and reaoved fron 1st Submarine Division. Submarine Squadron 1-8 WO 5 Jon 43 BO-104 assigned to 7th Submarine Squadron. 18 Jon 43 1-179 assigned. 1-39 11 Jtm U3 SO-105 assigned to 7th Submarine Squadron. First 30 Jna U3 EO-37 assigned. 11th 1-181, I-1B2 10 J«a 43 BO-110 assigned. TSDECrSfil MAEtr SASSBO EO-35 placed onder tactical command of Sixth Fleet. Fleet Submarine Squadron ao-35. EO-36 20 Jill U3 1*39 asslgwd to lUth Snbiarlne Division. EO-111 assigned. HO-104. EO-105, E0-10S, EO-109 31 Jul 43 BO-38 and 1-40 assigned. 1 AugU3 BO-108 assigned to 7th Submarlno Sqoadron. fifth Fleet Attached force 7th Submarine DiviBion (L2, 1-5, 1-6, 1-7) 1 Ing 43 L-7 sank and removed. CHOGEI 5 Jan 43 BO-104 transferred from 11th Submarine Squadron. 1-121, 1-122 Southeast 7th H&-34 Jan 43 EO-105 transferred from 11th Sabnarine Sqnadrun. Submarine Squadron Area BO-100, HO-101. H0-10S, SO-103 Ja l 43 HO-34 and EO-102 sank and removed. Fleet SO-106, RO-107 1 Aog 43 R0-10S transferred from 11th Submarine Squadron. Southwest 30th SobnariiiB Division (I-lb2 , I-I65, 1-166) BIO IM JANEIHO 1URU Area fleet JUTOEI KOBE lgth Sahmarine Division (1-153, 1-15^. 1-155) 19th Stitaarine Division (1-156, 1-157, I-15S, 1-159) Naval 26th Siibmarino Division (B0-&2, HO-67) District 33d Submarine Division (RO-63, HO-64. RO-68) EO-31 TOXOSBKA HavaL bth Submarine Division (EO-57, EO-58, EO-59) District - 73 ORGAN lEWIO! AS Of 1 AUG0ST 1943 CHASSSS IS OHaiUIZA'TIOH, 1 ATOTBT 19^3 - 1 SKSTSMBHH I9I+3 HATH BISTHICT C0HT3B33E SHU OT OOKTBHTBD SHIP UNIT DBSiejLAflOK SHIP AHD SUBMARINE DIVISION OR OR DAT5S SQtt&IRCN SHIP ATO STTBMARnn! DIVISION SPECIALLY SSTABLISHBD FORCB SPKIA1LT ESTABLISE3D 70SCS KATOEI 10 Aag 43 1-182 assigned to 22d Submarine Division. HO-35 15 Aag 43 I-l68 Bonk and removed from 12th Submarine Division, 2d Submarine Division (l~17, 1-19, 1-25, 1-26} I-1S1 assigned to 22d Submarine Division. 1st 20 Aag 43 15th Submarine Division (1-32, 1-34, L.35, 1.36, I-38) HE IAS HABIT YDK0ST3SA EO-36 placed under tactical command of Sixth Fleet. Submarine Squadron Sixth 1-9 Aag 1*3 1-9 sunk and removed from 1st Subnarire Squadron. 12th SuDmarine Division (1-168, 1-169, 1-171, 1-174, 1-175, 1-1761 3d 22a Submarine Division (1-177, 1-178, 1-180) YASTOltJSI MAHTT KTJKB 1st Submarine Division transferred from 8th Submarine Sqiadron to 1st Submarine Aug U3 Submarine Squadron Squadron. fleet 1-11 let Submarine Division (1-16, 1-20, 1-21} 8th lUth Submarine Division (1-27, t-29, 1-37, 1-39) Submarine Squadron 1 Sep 43 I-17S sunk aid removed from 22d Submarine Division. 1-8 HH KAEU TOKOSTJKA 1-10 10 Aag **3 1-182 assigned to 22d Submarine Division. 1-40 15 Aug 43 HO-109 assigned to 7th Submarine Squadron. *l*St 11th 1-179, 1-181, 1-182 1-181 assigned to 2?d Submarine Division. TStJKtJSHI MAHtJ SASS30 Jlaet Submarine Squadron HO-36, EO-37, ED-38 20 Aag 43 EO-36 placed tinder tactical command of Sixth Fleet. EO-42 assigned. EO-109, aO-110, B&-111 1 Sep 43 I-179 smk due to an accident and removed. fifth fleet Attached force 7th Submarine Division (l-2, 1-5, 1-6) RO-109 transferred from 11th Submarine Squadron. CB3GSI 15 Aug 43 1-121 and 1-122 assigned to KtHH ffaval District. Southeast 7th 1-121, 1-122 Ana Submarine Squadron 20 Aag 43 51st Submarine Division (EO-100, BO-101, EO-103, BO-104, RO-105, 80-106) erganizaj BO-100, fiO-101, HO-103. BQ-104 fleet BO-105, EO-106, BO-107, RO-108 SO-107 sunk and removed. 1 Sep 43 BO-108 and HO-109 assigned to 51st Submarine Division. Southwest Ares Fleet 30th Submarine Division (I-I62, I-I65, I-l6b) EIO 01 JJCTEIHG HARtT SASBBO JUJGSI 15 Aag 43 1-121 ad 1-122 transferred from 7th Submarine Squadron. SUJS 18th Submarine Division (1-153. I-151*. 1-155) 19th Submarine division (1-156, 1-157, I-15S, 1-159) Naral 26th SubmariHs Division (BO-62, BO-67) iiiatriet 33d Submarine Division (BQ-63, BO-64, E0-6S) 25 Aag 43 1-121 and 1-122 assigned to 18th Submarine Division. SO-31 TOKOSUKA Naval District 6th Sujwarina Division (SO-57. S0-5S, EO-59) - 74 OHGAHIZATIOH AS OF 1 SSPTSMBEfi 19^3 CEAHSBS IS 0RM5IZATIOK, 1 SSPTBHBSR 19&+3 - 1 OCTOBER 19U3 KA7AL DISTRICT COinrSHTEB SHIP OF COSVSHTED SHIP SHIP ASD STJBMABHra DIVISION TOUT D3SIGHATI0N SHIF AND SCBHAHI33 BIYISIOH OH OH BAT! SQtJADHCH SF3CIALIY 2STASLISHED FCRCI SPECIALLY ESTA1LISH3D F0RC1! KATORI L-31+ transfer*"ea from 15th Submarine DiTision to 8th Submarine Squadron. RO-35, HO-36 1-29 removed from lUth Suljroarine Division and placed under tactical eaomaad of Sth Subnwirins Squadron. 1st Submarine Division (l-l6, 1-20, 1-21} let 3d Submarine Sixth 2d Suhraarios Division (X-17, Ll9 , 1-25, 1-26) EHIAH MAHU TCKOSUKA 12th Submsrine Division and 22d Submarine DiviEion placed un*r tactical command Submarine Squadron 15 Sep U3 Squadron 15th Submarine Division (1-32, I-31*. 1-35. 1-36, 1-38) of Sixth Fleet and YASTJKXOT KARU assigned to Attached Force, Si^tth Fleet. ^activated 1-11 assigned to 1st Suhnerine Squadron. 12th Submarine Division (1-169, 1-171, I-171*, 1-175. I-17&) 3d 22d Submarine Division (1-177, 1-1S0, 1-181, I-1S2) TASUKMI MAHTJ KTJRB n#et Submarine 3cj.aB.dron X-ll 2k Sep 1*3 EO-37 placed tinder tactical command of Sixth Fleet. ll+th Subnar ine Division (1-27, 1-29, 1-37, 1-39) 8th US HIS HAR0 TOKOSTOA 1st Submarine Division deactivated and 1-16, 1-20 and I-?3 assigned to 2d Submarine Squadron 25 Sep 43 1-10 Submarine Division. 1 12 Sep I13 ED-39, BO- * and RO-112 assigned. I-S+O 18 Sep 1+3 1-4-1 assigned. First 11th 23 Sep U3 1-185 assignsd. HO-37. £0-38. HO-l+2 TSTJKHSHI MARTJ SASHBO 2k Sep 1+3 RO-37 removed and placed under tactical command of Sixth Fleet. Fleet Submarine Squadron BO-110, RO-111 2S Sep 1+3 RO-UO assigned. 30 Sep 1*3 I -183 assigned. Fifth Attached Force 7th Submariae Division (1-2, 1-5, 1-6) Fleet Southeast 7th CHoasi Area Fleet Submarine S^uadroa 51st Submarine Division (fiO-100, EO-101, EO-103, BO-104, RO-105, HO-106, EO-108, BO-109) Southwest 30th Submarine Division (1-162, 1-165, 1-166) RIO DE JANEIEO MARU SASEBO RIO IE JAHEIEO MAHT removed. Area Fleet 15 Sep 1+3 j or &s 1 lSt h Sutmariae Division (1-121, 1-122, 1-153, I-151*-, 1-155) KOBE 19th Submarine EiviEion (I-I56 , 1-157. 1-158, 1-159) Naval l£ Sep 1+3 RO-500 assigned. 26th Submarine Division CRO-62. BO-67) District 33d Submarine Division (EO-63, RO-CU, RO-68) HO-31 TOKOSUKA. 6th Submarine Division (EQ-57, RO-58, KO-59) Haval DiEtrict - 75 CBCMIZAfriOB AS OF 1 OCTOBER 19^3 CEASGSS IS OEGAHIZATIOT, 1 OCTOBER 19^3 - 1 TTOTWHBER 19U3 FATAL 3ISTRIC1? COITVSHTIiD SHIP OF COtfTSRTSD SHIP SHIP ATO SUBMAEIITB DITISIOH UHIT DESIGNATION SHU AND SUBMAEIES DIVISIOH OB OH SQTTAHRON SPECIALLY ESTABLISHED FQECS! SPECIALLY BSTABLISHSD FOECS 30th Sabm*rine Division transferred from Southveat Area Fleet to Sth Submarine KAIORI Oct U3 Squpflron. 1 12th Submarine Division (1-169, L.171, L17 +, 1-175, 1-176) HIB HURT removed frem Sth Submarine Sqiadron and Tilaced under tsctical eommand Oet U3 of Combind Fleet. 22d Submarine Division (1-177, I-18O, L-181, 1-182) EO-35, SO-36, BO-37 s Sixth 1~A0 transferred from 11th Submarine Squadron to 2d utiraarine Division. 2d Submarine Division (1-1$, 1*17. 1-19. 1-20, 1-21, 1-25, I~S6) HO-111 transferred from 11th Submarine Squadron to 30th Submarine Division. 1st 15th Submarine Division (h3Z , 1-35. 1-36. 1-39) HSIAH MAHJ TOKOSUKA Submarine Squadron 31 Oct U3 HO-35, EO-36 and HO-37, under tactical command of Sixth Fleet, organized into 1-11 3^th Submarine Division, fleet SO-38 trpnsferred frcn 11th Submarine Squadron to 3^tn Submarine Division. 8 th iMh Submarine Division (1-27, 1-37, 1-39) HIS KAElT TOKOSDKA Submarine Squadron I-S, 1-10, 1-29, I-31* Attached Force TASOTDNI UiSXJ 15 Oet U3 L-lgU and HO-113 assigned. 1-1*0, 1-41 1-1+2 and I-U3 assigned, First 11th BO-111 assigned to 30th Submarine Division. 1-183, L-1S5 TSOKOSia MAHU 31 Oet V5 EC^38 assigned to 3't-th Submarine Division. Fleet Submarine Squadron EO-38, 80-39, HO-UO. RO-1+2, HO-Wt L-lJ-0 assigned to 2d Submarine Division. EO-110, EO-111, HO-112 1 Sov ^3 RO-Ul assigned. 'if tli Attached Force fleet 7th Submarine Division (1-2, 1-5, t-6) Southeast 7th CHQGEI RO-103 gunk m 6 reooved from 51st Submarine Division. 51st Submarine Division (EO-100, BO-101, RO-103, RO-IO1*, HO-105, 1 ITov 43 Area fleet Submarine Squadron EO-106, 20-103, KO-109) Southwe Et 30th Submarine Division assigned to 8th Submarine Squadron. Area Fleet 30th SubmarinB Division (l-l6S , I-I65, l-l66) Oct 1*3 JEJGBI 18th Submarine Division (1-121, 1-122, 1-153, I-151*, 1-155) KUBE 19th Submarine Divieion (t-156, 1-157, I-15S. 1-159) Haval 26th Submariie Divieion (EO-62, EO-67) District 33d Submarine Division (RO-S3, S0-6U, EO-68) BO-31, HO-500 1 XQKOSEKA 6th SubmarinB Division (fiO-57, EO-58, RO-59) HaTal District - 76 ORCAUIZATIOH AS or 1 HOVSMBER 1943 CEAUGES IN 0R&ANIZATI01T, 1 N0VSKB1E 19^3 1 DBCSMBm 19^ 3 SATAL DISTRICT C0OT3RTED SHIP 0 7 COBVSBTBD SHIP UHIT DESIGNATION SHIP MS SUBMARINE DIVISIOH OS OR DATE 5Q.TTADRCH SHIP AND ST3BMARDTB DITISIOI SPSCliLLT ESTABLISHED FCRCI SPBOIALLT ESTABLISHED FORCB KAIOHI 1 0 Kov U3 RO-110 transferred from 11th Suomsrine Squadron to 30th Submarine Division. l£th Submarine Division (Ll69, 1-171, 1-174, 1-175. I-17&) 22d Submarine Division C1-177. 1-1SO, 1-181, 1-182) 1-26 transferred from 2a Suomarins Division to 8th Submarine Squadron. jUth Submarine Divieion (RO-35, RO-36, H5-37, HO-38) 25 Bov 43 1-39 transferred froa l4th Submarine Division to 2d Submarine Division. 2d Submarine Division (I-l6, L-17, 1-19, 1-20, 1-21, 1-25, 1-26. Sixth 1st L.40) mus HARD YOKOHAMA Submarine Squadron 15th Submarine Division {1-32, 1-35, 1-36. *-38) 3 0 Uov 43 HO-42 transferred froa 11th Submarine Squadron to 34th Submarine Division. 1-11 Fleet l4th Submarine Division (1-27, 1-37, 1-39) 1-17, 1-20 and 1-25 sank and removed from 2d Submarine Division. Sth 30th Submarine Divieion (L-l62, 1-165, I-l6b, HO-111) Submarine Squadron 1 Deo 43 1-182 sunk and removed from 22d SuDmarine Division. I-S, 1-10, 1-29, U3^ RO-35 sunk and removed froa 34th SuDmnrine Division. Attached force YASUKOTI MARtf KUHE 10 Nov 43 RO-110 assigned to 30th Submarine Divieion. 1-41, 1-42, 1-43 11th sulmarine first 11th 1-183, I-i.34, 1-135 Squadron transfer TSCKDSHI MARTT SA5XB0 25 Hov 43 red from First RO-43, HO-114 and HO-115 assigned. Fleet Submarine Squadron EO-39, EO-40, KO-41, EO-42. RO-tU Fleet to Sixth RO-110, EO-112, BO-113 aieet. 30 Fov 43 BQ-42 assigned to 34th Submarine Division. fifth fleet Attached fores 7th Submarine Division (1-2, L-5, 1-6) Southeast 7th CHO&SI 29 Kov 43 CHOSSI assigned to 11th Submarine Squadron. Area fleet Submarine Squadron 5lEt Submarine Division (BO-100, SO-101, RH-ltft, RO-105, RO-106, RO.108, HO-109) 1 Dec 43 RO-101 sunk and removed from 51st Submarine Division. XUKit Submarine JIUCEI Squadron KORS ISth Submarine Divieioa (1-121, 1-122, 1-153, I-151*, 1-155) Organized with 26th Submarine Division deactivated and RO-26 and HO-67 assigned to 33d Submarine 19th Submarine Division (1-156, 1-157, 1-158, 1-159) 1 Dec 43 JSaval Divisions and Submarine Division. 26th Submarine Division (HO-62, HO-67) Submarines of District 33d Submarine Division (RQ-63, BO-64. BO-68) KUJU1 Haval HO-31, SO-500 District. YOKOSUK1 HaveO, bth Submarine Division (EO-57, E0-5S, HD-59) Dl strict OEQAHIZATIOS AS Of 1 DBCSMBBE 1943 UHAWS^iS IS OSOAlTIZATIOIt, 1 UBCKMBIffi 19U3 1 JANUABT 19UU SAVAL DISTRICT COSVSHTBD SB IP 0 7 CC5TV5RTSD SHIP WIT EESIOKATIOH SHIP ASS SUBMABIHB DIVISION OR OS DATS SQPADBQT SHIP ATO SHBMAEI«ra DITISIOH SPSCIALLY SSTASLISH3D FORCE SPSCIA1IY USTABLISH8D rOROB KATORI 12th Submarine Division (1-169, ^171. 1-174, 1-175. 1-176) 15 Dec 43 14th Sabmarine Division deactivated 22d Submarine Division (1-177, I-1S0, 1-1S1) 34th Submarine Division (RO-36, fiO-37, RO-38. RO-42) 18 Dec 43 1*52 aasiglea to 11th Suomarine Squadron. 2d Submarine Division (1-16, 1-19, 1-21. 1-39. I-W) 1st 15th Submarine Division (1-32, 1-35, 1-36. 1-38) H3IAK MAHU YOKOSDKA Stiunarine Squadron 1-41 transferred from 11th Submarine Squadron to 15th Sttfcnarine Division. I-11 Sixth 20 Dee 43 I-1S5 transferred from 11th Submarine Squadron to 22d Submrine Division. ltt h Submarine Division (1-27, 1-37) ath 30th Submarine Division (1-162, I-I65, 1-166, HCX-llO, EO-111) Sobnarioe Squadron i-a, i-io, 1-26, 1-29, i-ih HO-39 sni HO-44 transferred from 11th SuDmarine Squadron to 34th Submarine Division. 25 DBC 43 KO-112 transferrea from 11th Submarine Squafiroa to JOfh Submarine Division. CnOG-SI fleet mi, 1-42, Uh$ llfch TSUKTSHI KARTJ SAS3B0 I-1S3, I-18U, I-1S5 23 Dec 43 i-U5 assigned to 11th Submarine Squadron. Submarine Squadron HO-39, BO-tO, BD-41, RO-^, EO-iA 1-10 removed from 8th Sutansrine Squadron mi -olacea under tactical comraai d HO-112. HO-113, SO-lll*, HO-115 1 Jan 44 of Siztii ileet . 1-34 sunk and removes from ?th Sutaarine Sqaadron. Attached Force TASDKHHI MAHU irnss fifth 7th Sabmarine Division (1-2, L-5, 1-6) Haet Attached force Southeast Area 7th 51st Submarine Division (BO-lOO, HO-1CW, HO-105, EO-106, EO-1OB, Submarine Squadron Fleet HO-109) JIBG3I lgth Submarine Division (1-121, 1-122, 1-153, ^15^, 1-155) SUBS KUES Haval 19th Suomarine Division (-1-156, 1-157, 1-153, 1-159) District Submarine Squadron 33d SataariiB Division (EO-62, fiO-63, ?LO-hh, EO-67, EO-68} EO-31. BO-500 YOKOSCKA JJaval District 6th Submarine Division (EO-57, SO-5S, fiO-59) 1 1 QR&AHI£AIIQH AS OF 1 JA3UABY 19 M+ CHAHOSS 15 OR&AjnZAf IOT, 1 JAKTARY 19 * * 1 TCTHTTARY 19IA NAVAL DISTEICT COHVERTED SHIP OF COimSTED SHIP UNIT BSSIGHATION SHIP AHD SUBMARIXS DIVISICH OB OE DATS SQJ-TASROT SHIP MT> STOHARIffl: DIVISION SPECIALLY ESTABLISHED F0EC3 SPBCIALLY ESTABLISHED FOECIi KAfOHI 11 Jan UU RO-U-5 assigned to 11th Submarine Squadron. 12th Submarine Division (l-l69 , 1-171, l-llk, L-175, L176) 22d Submarine Division (1-177, X-1SO, 1-161, L-IS5) 15 Jan * EO-UO transferred from 11th Submarine Squadron to 3^th Submarine Division. 3Uth Submarine Division (HO-36, HO-37, HO-3g, EO-39, EC-U2, RO-W L-10 1st Submarine Squadron deactivated ind 15 Jan Uk its divisions plsced under tactical command 2d Submarine Division (1-16, 1-19, I-Hl. 1-39, l-ho) of Sixth Fleet. 1st HSIAH MAETT YOKOSTOA 15th Submarine Division (1-38, 1-35, I 36, 1-38, l-^l) Submarine Squadron Sixth I-11 & Jm hk 1-53 assigned to 11th Submarine Squadron. Stli 30th Submarine Division (I-I62, I-I65, 1-166, SO-11O, HO-111, EO-112) 1-1+2 transferred from 11th Submarine Squadron to 15th Submarine Division. Submarine Squadron I-S, 1-26, 1-27, 1-29, 1-37 1-18^ transferred fro* 11th Submarine Squadron to 22d Submarine Division. CHCG3I 31 Ja n UU Fleet 11th L-'lS, 1-43, 1-45, 1-52 L-UU, RO-U7, HO-llS and EO-117 assigned to 11th Submarine Squadron. 1-133, 1-184 TSDKTJSEI MAHU SASSBO Submarine Squadron HD-l+O, EO-41, HO-1*3 EO-113 transferred from 11th Submarine Squadron to 3°th Submarine Division. EO-113, EO-lllt, EO-115 Attached Force YASTmmi MAEU fifth 1 Feb Uk 7th Submarine Division transferred from Attached Fo-ce of Fifth Fleet to Fleet Attached Force 7th Sabmarin* Division (1-2, 1-5, 1-6) Sixth Fleet. Southeast 7th 5lBt Submarine Division (EO-100, EO-101*, BO-1O5, RO-1O6, RO-1O6, Arse, Fleet Submarine Squadron HO-109) JIHOBI 18th Submarine Division deactivated. 1 KUR2 KURE ISth Submarine Division (1-121, 1-122, 1-153, I-15 *. 1-155) 1-153 and X-15^ designated reserve ships. JJaval 19th Submarine Division (1-156, 1-157, 1-158. 1-159) 1-121, 1-122 and 1-155 assigned to 19th Submarine Division. District Submarine Squadron 33d Submarine Division (EO-62, BO-63, EO-6U, EO-67, HO-68) RO-31. HO-50O RO-31 removed (reserve ship) YQKOSUKA IJavd. 6th Submarine Division (RO-57, E&-5S, EO-59) District OEGAHISAIIOS AS OF 1 FEBRUARY 19UU CHAHG2S UT OTOMIZATION, 1 FEBRUARY 191 * 1 MARCH 19W+ NATAL DISTRICT CajfTEETSD SHIP OJ COffVSHTBD SHIP UNIT DBSISHAIIOH SHIP AND SUBMARINE DIVISICSJ OE OE DATB SqtTADHOS SHIP ATO STffiHARIira BITISION SPECIALLY ESTABLISHED FORCE SPEC IALLY ESTABLI SHED FOECB KATORI LU3 transferred from 11th Submarine Squadron to 15th Submarine Division. 1 1 ?e b UU 2d Submarine Division (l-l6, 1-19, 1-21. 1-39, I-UO) R0-U6 assigned to 11th Submarine Squadron. 7th Submarine Division (1-2, 1-5, 1-6) 12th Submarine Division (I-I63, L-171, I-17U, 1-175, 1-176) 15th Submarine Division (1-32, 1-35, 1-36, 1-38, I-Ul, I-U2) 15 W b UU KATORI transferred from Sixth Fleet to KTJHE Training Sqnadrou. Sixth 22d Submarine Division (1-177, 1-180, 1-181, I-I84, I-I85; 34th Submarine Division (BO-36, EO-37, HQ-3S, Ho-39, EO-^O, SD-kz, JLOJik) RO-llU transferred from 11th Submarine Squadron to 30th Submarine Division. 1-10, 1-11 2 0 PB'D V+ 30th Sutaarine Division Cl-l62, I-I65, 1-166, HO-110, HO-111, Stli EO-112, HO-113) 26 ?eb UU I_U6 assigned to 11th Submarine Squadron. rieet Suhmarine Squadron 1-3, 1-26, 1-27, 1-23, 1-37 CHOGEI 7th Submarine i.M-3, I-Wi, 1-45, 1-52, I-53 11th Squadron I-1S3 TSUKTJSHI MAEU SASKBO transferred Stdunarine Squadron from Southeast EO-^l. E0-H3, EO-i+5, S0-U7 1 K a r UU Area Fleet to BD-ll^, RO-115, B0-U6, EO-117 Sixth meet. E2IAH KAHU YOEOSTJKA Attached Force YAsmcrori HARTJ KDEK EO-100 eunk and ramoved from 51st Submarine Division, Southeast 7th 51et Sabmarine Division (HO-100 , BO-lOU, HO-105, EO-106, HO-108, 5 Fel) UU HS-109) Area fleet Submarine Squadron ?tt Sntaariiie Sons, 1 Mar UU arori traasfeiraa tpoa Southwest Area Bast to Sixth TJeet. JIHUEI 19th Sabmarine Division (1-121. 1-122, 1-155, I-15&, 1-157, I-15S, EURS EURE 1-159) Haval District Submarine Squadron 33d Submarine Division (E0-b2, ECU>3, EO-fcU, SO-47, EO-68) 10-500 TOKOSUKA Haval 6ffli Submarine Division (EO-57, E0-5S, HO-59) District - 80 QEGASIZAIIOH AS OF 1 MABCH 1944 L-BWtfflS 15 0E5ANIZATI0K, 1 MABCH 19^ 1 APRIL 1944 HAVAL DISTRICT OF C0jnr2ET3D SHIP CCWTr!HTi!!Il SHIP CfR tliffir DSS1OSATIQN SHIP A3D SUBKAHIK3 BI7ISICftT Ofi SPECIALLY ESTABtlSHSD DATS sqpHmas SHIP ATO 5TJBIMBIH3 riTISIOT SPICIALLT BSTA5LISHRD FCKCB FORCS 1-16 transferred from 23 Suomsrine Division to 15th Submarine division. £d Submarine Division (l-l6 , 1-19, 1-21, 1-39, I-^O) 5 Mar U4 HO-41 transferred from 11th Submarine Squadron to 3^th Sacrawrlne division. 7th Submarine Division {1-2, 1-5, I-fc) 12th Suomarine Division (L169, 1-171. I-171*. 1-175. L176) HO-43 trsneferre* from 11th Submarine Squadron to J4th Submarine Division. 15th Submarine Division (l-32, 1-35, 1-36, 1-38, 1-41, 1-42, 1-^3) YASTOtWI MARtI eui*: and removed from Sixth Fleet. 224 Submarine Division (1-171, I-1S0, 1-181, 1-184, 1-185) 10 «ar 44 SO-115 transferred from 11th Submarine Squadron to 51st Submarine Division. 34th Submarine Division (EO-36, BO-37, H0-3S, HO-39, RO-40, RO-42, H0-4U) 1-52 transferred from 11th Submarine Squadron to 8th Submarine Sqctpdroa. 1-10. 1-11 EO-110, HO-111, RO-112 transferred from 30th Submarine Division to 51st 20 Mar 44 Submarine Division. 7 tia 51st Submarine Division (HO-104. HO-105, HO-10b, R0-10S, HO-109) Submarine Squadron 1.45 transferred from 11th Submarine Squadron to 15th Submarine Division. Sixth 3 tb 30th Submarine Division (L-lb2, 1-165, I-l6b, HO-llO, HO-111, 20-112, HO-113, R0-J.14) 25 Mar 44 Submarine Sq.aad.roo. EO-113 snd RO-114 transferred from ^Oth Subiaarine Division to 51st Submarine I-g, 1-26, 1-27, 1-23. t-37 Division. 30th Submarine Division iaactivated and 1-162 asaigpsd to iCUHK Defense Squadron. CHQQ2I 1.44. 1-45, I-1+6, i-52, L.53 11th Fleet 1-1S3 TSUKUSHI KAHU SAS1TB0 EBIA1T MARtT sunk and removed fPoft Sixth Fleet. Submarine Squadron HO-Ul, HO-t+3. H0-)+5, HO-46, HO-47 KO-115, EO-116, HO-117 31 Mar 44 HO-48 assigned to 11th Submarine Squadron, L-54 assigned to 11th Submarine Squadron, Attached HE IAN MAEIT YOEOSUKA 1 Force Mar U * P.O-531 assigned to 3th Submarine Squadron. YASUKTWI HAHH KTTEE 25 Mar hk 1-162 transferred from 8th Submarine Squadron to KTJKS Defense Squadron. KUHE KUHS 19th Sutaariaa Division (1-121, 1-122, 1-155, I-15&, 1-157, L-15S, Haval 1-159) Submarine Squadron District 33d SubmarinB Division (RO-62, H0-b3, HO-64. EO-67, RO-68) 1 Apr W 1-33 assigned to XTTRS 5aval Dietrict. HO-500 YOKOSUKA Kaval 6th Submarine Division (HO-57, EO-58, HO-59) District - 81 OEGANISAIIOB AS OF 1 APRIL 1944 CHAHGSS IK OR&ASIZATIOIT, 1 APHU l9Vt 1 MAY I91A HATAX DBTHICT COKTSETBD SHIP OF COFiraR'PED SHIP US IS BSSIGHAIIOH SHIP AHD SBBMARIBE DIVISION OE OR DATS SqpADROS SHIP AND SUBMARnrB DIVISION SPECIALLY BSTABLISHSD TOICS SPECIALLY ESTABLISHED FORCE 24 Submarine Division (1-19, 1-21. 1-39. 1-^0) 15 Apr to RQ.l*5 transferred from 11th Siibmarine Squadron to 3^*n Submarine Division. 7th Submarine Division (l-2 , 1-5, L-6) 12th Submarine Division (I-l69, 1.171, 1-171*, 1-175, I-17&) 20 Apr W 1-55 assigned to 11th Submarine Squadron. 15th Submarine Division (l-l6 , 1-32, t-35, 1-36, I-3S, Ukl, Uk2, I-U3, 1-1+5) 25 Apr * 30th and 85th Sutmarine Base Slit s assigned to Sixth Fleet. 224 Submarine Division (3-177. 3-180. 1-181, I-18U, I-iS5) 3l+th Suomariae Division (HO.36, EO-37. EO-38, EO-39. HO-UO, L-HH transferred from 11th Submarine Squadron to 15th Submarine Division. ED-41, BO-te, HO-^3, BO-W) 28 Apr W 1-183 transferred from 11th Submarine Squadron to 22d Submarine Division. Sixth i-10, X.11 I_19, 1-^21, 1-39 and L-M-0 sunk and removed from 2d Sabaarina Division. 7th 51st Submarine Division (H&-10+, EO-105, BD-106, BO-108, RO-109, 2d Submarine Division deactivated. EO-110, BD-U1, HO-112, BO-113, EO-UU, Submarine Squadron E0-U5) L.11 sunk and removed from Slxtn Fleet. 3-35. 3-42 and I-U3 sunk and removed from 15th Submarine Division. 8th US, 1-26, 1-27, 1-29, 1-37 3° Apr V* IU171 sunk and removed from 12th Submarine Division. fleet Submarine Squadron i-52, 1-165. I-lfeb, BO-501 1-151 sunk and removed from 22d Sumarine Division. CHOGBI HO-37, HO-38, HO-39 and RO-40 sunk «»idreooved from 3^th Submarine Blvision. 11th u^h. i.m>, L53, 1-54 1-183 TStJTDSHI KAHtT SASSBO s t Submarine Squadron HO-110 sunk aid removed from 53- Submarine Division, EO-^5, SO-kb, B&J*7, HO-W BO-116, HO-117 1-33 JJ3GEI TUBS EIES 19th SttbmariM Divi»ion (1-121. 1-122, 1-155, 1-156. I-157. 1-153, 1-159) lavei District Submarine Squadron 33d Sntnarina Division (S0-&2, RO-63, BO-6^, BO-67, BO-68) HO-500 XUSX I-1&2 Defense Squadron TOKJSOXA Savtf. 6th Sobmarini Diviaion (Bft-57, BO-58, £0-59) District ORGAiJIZATIOH iS OF 1 E l 191*1* CEAHOS IU OHGASIZATIOS, 1 HAT 19 ^ _ 1 JUKE 19^ 1 SAVAL DISTRICT COFrastEE SHU OF CdfTSETED SHIP ON IT ESSIGHATIO3 SHIP AND StmMAEIira BIT IS ION OR OH DATE SqiADHW SEIF ATO StIBMAEira HITISIOH SFEC1A1LY ESTiELISHSB TORCH SP3CIALLT SSTABLISE2D POBOS 7tb Submarine Division (1-2 . 1-5, 1-6) k May UU E0-ll6 transferred from llt a Sulmarine Squadron to 51st Sttbmarine Divieion. 12th Submarine Division Cl-l69, Ultk, 1-175, 1-176) 15th Submarine Division (l-l6 , 1-32, t-36, 1-38, 1-^1, Ukk, 1-1*5) 22d Submarine Division (1-177, I-1SO, 1-123, H*. L185) RO-»47 transferred from 11th Submarine Squadron to 3^-th Submarine Division. 3»Hh Submarine Division (KQ-36, BO-Ul, RO-1+2, BO-43, B0-¥+. lU May I4U BO-U5) RO-117 transferred from 11th Submarine Squadron to 51st Submarine Division. 1-10 Sixth 7th 19 H«y 1A 1-53 transferred from 11th Submarine Sqiudron to 15th Submarine Division. 51st Submarine Division (KO-lOlt-, ED-105, KCul06, EO-108, 80-109, Submarine Division E0-11I, HO-112, EO-113, EO-llU, EO-115) US 25 May UU 1-12, I-3&L and I-3&2 assigned to llt b Submarine Squadron. fleet Sth 1-26, 1-27, 1-29, 1-37. 1-52 Submarine Division LI65, I-166 EO-501 CEOQEI 11th 1-1(6, 1-53, L$k, I-55 TST310JEHI HAHJ SASlfflO Submarine Squadron H0.U6, EO-1+7, E0-4g 1 Jun Wt 1-33 assigned to Hth Submarine Squadron. EO-ll6, EO-117 30th Submarine Base Unit TOICOSUKA Attached Force S5th Submarine Base Unit YCKOSTKA 1-33 19 May 1A HO-^ assigned to 33d Submarine Division. aims 1 HJSE 19th Sutnarina Divieiou (1-121. L122, 1-155, 1-15&. 1-157, 1-158, r-i59J Submarine Squadron 33d Submarine Division (BC-62, HD-63, H0-6U, HO-67, R(X6S} 2 0 May UU EO-500 assigned to 33d Submarine Division. Maval EO-500 DiBtrlct XUKE 1-162 1 Jun 1-33 assigned to 11th Submarine Squadron. Defense Squadron YGXQSUKA. H a va l 6th Submarine Division (HO-57, E0-5g, HO-59) district ORGANIZATION AS OF 1 JUNE 194-U CHAWJBS ET ORaAHIZATlOH, 1 JONS IS^k 1 JULY 19^+U NAVAL DISTRET COHTBETBD SHIP OF CONVERTED SHIP UNIT rSSIGHATIOH SHIF AHE SUBMARBS DIVISION OE OB DATE SQUADRON SHIP M B StTBMARnrS DIVISION SFBCULLT ESTABLISHED JOBCS SPECIALLY BSTABLISBSD FOECB 7th Submarine Division (1-8, L-5, 1-6) g Jun hU I-5o aasis^ed to 11th Submarine Squadron. 12th Submarine Division (1-169, U17k, 1-175, 1-176) 15th Submarine Division (l-l6, 1-32, 1-36, 1-38, I-Ul, Ukk, 1-^5. 1-53) 22d Submarine Division (1-177. I-lSO, I-1S3, I-lSU, 1-185) 1-32 sank and removed from 15th Submarine Division. 3Uth Submarine Division (BD-36, E0-I+1, HO-lt2, SO-h?, HO-UU, HO-U5, &6.kl) 10 Jun UU L-l69 and 1-174 sunk and removed from 12th Submarine Division. 1-10 Sixt h 1-2 sunk and removed from 7th Submarine Division, 7th 51st Submarine Division (EO-IOI4, HO-105, RO-106, BD-10S, BD-109, BO-111, EO-118, EO-113, BO-111*. E0-U5, Submarine Squadron EO-llfi. BCL117) Ik Jun W* j_3feit assigned to 11th Submarine Squadron, 1-8 etb 1-26, 1-27, 1-29, 1-37, 1-52 20 Jon ^ 1-26 transferred from 8th Submarine Squadron to 15th Submarine Division. Submaii as Squadron I-165, 1-166 so-501 fleet CHO&BI 23 Jon W+ HQ-1*6 transferred from 11th Submarine Sqadron to 3^th Submarine Division. 11th 1-18. 1-33, I-t6. 3-5^. 1-55 TSDK1BHI MARTJ SASEBO Subnarina Squadron X.361, 1-362 H0-U6, E0-it3 30th Submarine Bas«S tfeit YOEOSDKA Attached force 85th Subnarine Base Unit YOKOSUKA j of as 1 KUEi KURB 19th Submarine Division (1-121, 1-122, 1-155, 1-156, 1-157, I-15S, 1-159) L-l62 transferred from KTJR3 Defense Squadron to 19th Submarine Division. Submarine Squadron 33d SutBiarine Division (fiO-1+9, EO-62, BD-63, S.0-6k, BO-67, Kaval E0-6S, HO-500) BO-500 transferred from 33d Submarine Division to ETJHB Defense Squadron, District KBES 1-162 Defense Squadron TOKOSUKA HavaQ. 6th Submarine Division (BO-57, E0-5S, BO-59) District - 34 1 Qs&isiztaias AS OP I JTJLY 19V* CHASGSS IH OB&AKIZATIOF, 1 JTJLT 19 * 1 ATOOST I9I A SAVA1 BSTHICT COSTSHTBD SHIP OF COBTTSETSD SHIP OHM DSSI&HAflQH SHIP AHD SUBMARINE DIVIS IDS OR OR HA33 squABRar SHIP AJTD STTBMAEHra DI?ISIOH SEBOIALLT SSTABLISEEB FORCE SPSC IALLY ESTABL KHSD FOB3B 7th Submarine Eivision (1-5, L-6) 3 Jtll * RO-Ug transferred from 11th Submarine Squadron to 3^th Submarine Division, 12th Submarine Division (1-175, L.176) 5 Jtt l UU BO-31 transferred fron TOKOSOKA Baval Biatric t to KDffl Naval District . 15th Submarine Division (l-l6, 1-26, L-36, I-3S, 1-1+1, I-1U. L-45, I.53) I.363 assigned to 11th Submarine Squadron, 22d Submarine Division (1-177, I-1SO, I-1S3, I-16U. 1-185) g Jul * 3^th Submarine Division (EO-36, EO-lU, HO-42, EO-U3, E0-¥+. I-5U E«xd 1-55 transferred from 11th Submarine Squadron to 15th Submarine Division. 110-45, BG-Wj, HQ-U7) 1-175 s^ 1.176 sank and were removed from 12th Submarine Division. 1-10 12th Submarine Division deactivated. (BO-IOU, EO-105, EO-106) 1-120 sunk Bed' was removed from 22d Submarine Division. 10 Jal "A 7th (EO-lOg, EO-IO9, EO-111) EO.H5 sunk and was removed from 3^th Submart ne Division . 5lBt Submarine Division •> Submarine Squadron (E0-U2, HO-113, SO-lllt) 1-27 sunk and was removed from 8th Submarine Squadron. (EO-II5, SO-116, E0-U7) Sixth 1-33 sunk T)y accident and was removed from 11th Submarine Squadron. I-U7 assigned to 11th Submarine Squadron. US 3 th 1-27, 1-29. 1-37, 1-52 Submarine Squadron L.165, tl66 TSTIKT3SEI MAETT transferred from 11th Submarine Squadron and attached to Sixth 20 Jul UU Fleet. fio-501 CKOGEI 31 Jul W* EO-50 assigned to 11th Submarine Squadron. 1 11th 1-12, 1-33. i- ^. 1-5^. 1-55, U56 Fleet TSmOSHI MABU SJLSEBO t-365 assigned to 11th Submarine Squadron. Submarine Sijiadron I-361, 1-362. I-3&* EO-l+S 1-177 transferred from 22d Submarine Division to 31*th Submarine Division. 30th SulJmarine Base Unit TOKOSOKA 85th Sutmarine Base TTnlt transferred from Sixth Fleet to Fourth Fleet. Attached Force S5th Submarine Base Ohit YOKC6T3KA JINQSI KUB» KUBS 19th Submarine Division (1-121, 1-122, 1-155, I-I56, L-157. I-15S, K-159. 1-162) Submarine Squadron 33d Submarine Division (EO-ll9, EO-62, EQ-63, HO-61+. EO-67, Naval EO-68) District KUBS EO-500 Defense Squadron YGJiGSBKA S&va l 6th Submarine Division (ED-57, EO-5S, BO-59) District - 85 OHGANIZATIOH AS OF 1 AUGUST 19V* CHAireiis nr OSGAHIZATIOH, I ATKJTIST iBUk. 15 AUGUST iguu SATAI, DISTEICT COBVEE'ESI! SHIP OP COHTERTBD SHIP UIUT IBSIOSASIOH SHIP AUD STOMAHIH3 DIVISION oa OE DA!P3 SqpADEON SHIP USD SUBMARINE DIVISICIT SPECIALLY SSTA1LISHBD FOECE SPECIALLY SSTABLISHBD FOECB ?th Submarine Divisio n (1-5 , 1-6) 3 Aug W+ t-366 assigned to 11th Submarine Squadron. 15th Submarine Division-! (L-16, 1-26, L-36, 1-38, UH1, I-Mf, I r-»*5, 1-53, I-9+. 1-55) 22d Submarine DivisionJ (I-I83, I-lgl*, I-1S5) 5 Aug hh 1-29 transferred from Sth Submarine Squadron to 15th Submarine Division. 1(1-177} 31+th Submarine Division ! (BO-36, EO-l+l, BO-i+2, RQ-^3) I (BO-41+, EO-W>, HO-l+7, EQ-48) L-183, I-IS1* and L.135 sunk and were removed from 22d Subnarine Division. L-1O 22d Submarine Division WPS deactivated. {BO-1OH, EO-1O5, EO-IO6) 10 Aug HU EO-36, EO-l+2 and S0-U4 sunk and were removed from 3^th Stajowine Division, 7th (EO-1OS, SO-IO9, EO-111) 51st SaDmarine Division Sixth Submarine Squadron (EO-112, EO-113, BO-llli) 1D-10H, RO-105, SO-106, HO-105, EO-111, EO-llU, EO-116 and EO-117 sunk and removed from 51st Submarine Division. ^ (EO-115, EO-116, EO-117) 1.8 Sth 1-29, 1-37, 1-52 Submarine Squadron H65, 1-166 HO-501 CEOQiSI 51st Submarine Division deactivated; 50-109 and EO-112 assigned to KTTHB 1-12, 1-1*6, 1-1+7, I_5b Submarine Squadron and EO-113 and EO-115 assigned to Sth Submarine 11th Squadron. neat 1-361, 1-368, L-363, 1-361* Submaii ne Squadron 1-365 1-361 and L-3&2 were transferred from 11th Siibnarine Squadron to 7th Sub BO-50 1 5 AJig kh marine Squadron. E0-U9 was transferred from 33d Submarine Division to 11th Submarine Squadron. 30th Submarine Base Oh i t TOKOSTOA Attached Force I-367 assigned to 11th Submarine Squadron. 31it Submarine Base Unit KtJHB TSUKTTSHI MAETJ SASSBO JINGil EO-bS was transferred from 33d SuOraarine Division toOTfflJ Defense Squadron. KUBS KUBB 19th Sutmarine Division j (1-121, 1-122, L.155, I-I56, 1-157. HO-109 aid SO-112 were transferred from 7th Submarine Squadron to KTJH3 Sub Submarine Squadron I 1-158, 1-159, 1-162) 15 Aug 1* marine Squadron. Savsl 33d Submarine Division (HO-49, HO-62, HQ-63, HO-64, HO-67, EO-68) District HO-^9 was transferred from 33d Submarine Division to 11th Submarine Squadron. £TJB£ so-500 Defense Squadron TOKOSBKA Kava l 6t h Submarine Division (HO-57, EO-5S, EO-59) District OBGAHIZATIQS AS OF 15 ATOOST Vjkk CHASGBS IK OROASIZATIOH, 15 ATOT7ST 19UU _ 1 5 SSPTTOBHR ig W HATAL D1STEICT COFVSRTSD SHIP 0 ? C OS VSHTSO SHIP VSIT DBSIGSATIQH SHIP AND SUBMAEDJE DITISIOS OS OE DATS SQDABRCH SKIP ATO SUBMAEISE DITISIOB SHSCIA1LT 2STABLISHED JCHCB SP2UIALLY SSTABLS3HBD FOSOI 25 Aag Mv I.368 assigned to 11th Submarine Squadron. 7th Submarine Divisio n (1-5 , 1~b) 15th Submarine Divisio n J (I-16 , 1-26, 1-29, 1-36, 1-38, L-W.. ] 1-44, 1-45, 1-53, 1-9*. 1-55) 1 Sep UU 30th Submarine Base 13bit deaotiTated. 1(1-177) 34th Submarine Division J (B&.ln BO-43, 30-46, R0J+7J (HO-l«) HStptt L-370 aeslgned to 11th Submarine Squadron. 1-10 5 Sep kk LkH assigned to 11th Submarine Squadron. 7th Submarine Squadron I-36I, I-362 Sixth S Sep U1+ I-36U transferred-fron 11th Submarine Squadron to 7th Submarine Squadron. 1-37. 1-52 6 th 7 Sep 41f 1-52 assigned to 11th Submarine Squadron. I-165. 1-166 Submarine Squadron KO-113, ao-115 EO-5O1 L-5 sunk and was removed from 7th. Submarine Division. CHOGSI 1-6 sunk and was removed from 7th Submarine Division. 1 0 Sep M+ 1-12, L-l+6, U11, 1-56 7th Submarine Division deactivated. fleet 11th 1-363, I-361+, 1-365. 1-366 Submar ins S cfi adron 1-367 1-166 sunk and was removed from 8th Submarine Squadron. so-H-S, HO-50 B 1 2 Sep IA 1-37 was transferred from Sth Submarine Squadron to 15th Submarine ivision, 30th Submarine Base tJait TOKOStJKA Attached Force 31 at Submarine Ease Unit ETJHS 15 Sep Wi 1-363 was transferred from 11th Submarine Squadron to 7th Submarine Squadron. TSTJKUSSI MAETT SAS3B0 JIH03I KUEE 19th Submarine Division ] (1-121, 1-122, 1-155, 1-156, 1-157, KURS [ I-15S, 1-159, 1-162) Submarine Squadron 33a Submarine Division (S0-6£, Ea.63, H0-b4, HO-67) Haval EO-109, EO-112 District KTJKB Defense Squadron R&-6S, RO-500 YQJCO5UKA itavsl 6th Submarine Division (RO-57, EO-58, EO-59) Difstrif ^ - 37 OBOAHIZAflOH AS OF 15 SEPTEMBER 19414 CHATKJES VS CRGAUIZATIOH, 15 SBPTBKBSR 19UU _ 1 5 0CTOB3R 194 U WATA1 DISTRICT C0HVERT33 SHIP or canrasTED SHIP •HIT HBSIGHATIQH SHIP ASD STBMARIHB DIVISION OR OR DATS S^TADKON SHIP Aim STJBMKRIST: D^ISIOIT SFBCIAIXY 3STABIISHBD FOBCS SPECIALLY ESTASIISHBD PORCS 20 Sep hk I—5S transferred from 11th Satmarine Squadron to 15th Submarine DiviBion. 15th Submarine Division (l-l6, 1-26, L-29, L.36, 1-37, I-3S, L.41, I_Vt, 1-45, 1-53. I-51*-. 1-55) 1-46 transferred from 11th Submarine Sqiadron to 15th Submarine Di-rielon. f< L177) 34th Subaarine Division iUO-l+l, RO-43, RO-46, HQ-47) 30 Sep Hh 1-365 trfsnaferred from 11th Submarine Squadron to 7th Sabasrine Souadron. [CHO-4S) EO-55 assigned to 11th SuDmarine Squadron. 1-10 L.360 transferred from 11th Sutmarine Squadron to 7th Submarine Sqiadron. 2 Oct UU 7th 1-371 aesigned to 11th Submarine Squadron. Submarine Squadron I-361, I-362, 1-363, 1-364 Sixt h 1-8, L52 4 Oct UU L-12 transferred from 11th Submarine Squadron to Sixth Heet. 8th I-lb5 Submarine Squadron RQ-U3, HO-115 S Oct 44 1-47 transferred from 11th Submarine Squadron to 15th Submarine Division. HO-5Ca 9 Oct 4U L.369 aedgned to 11th Submarine Squadron. CHOMI 1-12, J-46, 1-47, !-*»«. L-56 t-10 sunk aid WPE removed from Sixth fleet . 11th I-58 L-l6, 1-29 and 1-55 sunk and were removed from 15th Submarine Division. Jleet 10 Oet 44 1-365, 1-366. 1-367. I-36S RO-48 sunk and was remove3 from 34th Submarine Division. Submarine Squadron 1-370 RO-501 eunfc and was removed from Sth Submarine Squadron. BD-U9, BO-50 31st Submarine Base Unit KDHB Attached force 15 Oct W I—367 was transferred from 11th Submarine Squadron to 7th Submarine Squadron. TSTJKDSHI MAEO SAS3B0 JIBGSI 25 Sep 44 RO-109 and RD-11? were assigned to 33^ Submarine Division. 19th Siaimarine Division |( 1-121, 1-122, 1-155, 1-156, 1-157, KUSX KDBS L 1-158, 1-159, L-162) Submarine Squadron 334 Submarine Division (EO-62, HQ-63, EO-64, HO-67) Haval HO-1O9, HO-112 district 10 Oct 44 HC-6? was transferred from 33d Submarine Division to TUBS Defense Squadron. KUB1 SO.6S, &O.500 Submarine Squadron YOKOStJZA JtavA 6th Sttboarine DiTision (SO-57. EO-5S, 80-59 ) District - 88 OBGAHIZAIIOT AS OF 15 OCTCBSH 19>* CHAH8ES W OBSAHIZATIOH, 1 5 OCTOBSE 19M4 - 15 HLVFUBBS 19UU CCK7SRTSB SB IF HA7AL DISTEICT SHIP AHD SUBMAHHB DITISIOS UKIT BSSI&HAIIOa SHIP AHB SUBMARDB DIVISION 05 OH 00B7SSSSD SHIP DATS SqOADECH SFSCIALLY SSTASLISESD FOECK OR SPBCIAILT 3STABL1SHBD JOKX f(l-26, I.36. 1-37, L38) RO-109 and EO-112 were transferre d from 33d Salmarine DiTielon t o 3^th 2 0 Oct W* 15th Sulmarine DiTisioc J(i_lnt I_i&, uk$, 1-1*6) Submarine Division. [(Ll*7. 1-53. 1-5^. I-56) 3l*th Submarine Division J{ 1-177) KBO-iH, EO-^3, HO-46, EO-1*7) 2 HOT »A I-36 8 vas transferre d from 11t h Submarine Sqiadron to 7th Submarine Sqaadron. I-IS U HOT UU 1-370 vas transferre d from 11th Submarine Squadron t o 7t h Submarine Squadron. 7th L361, I-362, I-3&3, I-36U 1-3 was removed fra n St h Submarine Squadron and placed under tpctica l coaraand Submarine Squadron 1-365. 1-366, L.367 of Sixth Fleet. 3ixth 5 HOT ! * HO-50 was tranaferfed from llth SuTwarine Squadron to 31**11 Submsrine Division. Sth 1-8. I-5£ 1-165 Submarine Squadron Ecmi3, EO-115 g HOT Wt 1-372 was assigned to 11th Submarine Squadron. CHOG3I 11th L-W, I-5S Fleet Submarine Squadron I-36S, I-369. 1-370, 1-371 1 0 HOT Vt EO-^9 was transferred from 11th Submarine Squadron to 3^*11 Submarine Divieion. EO-49, EO-50, EO-55 31st Submarine Base Unit KUKS Attached Force 1 5 HOT * K0-5S was assigned to 11th Submarine Squadron.. TSXJKTJSEI MABB SASBBO JINKS I 20 Oct kk KO-109 and EO-112 vere transferred from 33d Satastine DiTision to 3M;h SalmarinB KOBE Hivision. SUSS. 19th Submarine Division (1-121, 1-122. 1-155, 1-156. H57 . 1-158, 1-159. I-1 K Submarine Squadron Voxel 33d Sutaarim Pirisio n (EO-63, HO-61*. HO-67. BO-109, EO-112) District 1 0 Hov »A JDRxII sunk and was removed from 1TDRS Sutmarine Squadron. KOBE EO-62, EO-62, EO-500 Submarine Squadron YQXOSUKA Haval 6th Submarine Division (EO-57, HO-5S, BO-59) District ORGANIZATION AS OF 15 NOVEMBER 19 ^ CHfiTUaS IN ORSAHIZATIOH, 15 KOTBiraER 19IA- 15 EBCEMBER 19UU SA.VAL DISTRICT CONTOBTBD SHIP ns1 conrsHTED SHIP VHVS DBSIGHATION SHIP AKD SCBMARIIIE DIYISIOH OR OR DA3E SQTIADROS SHIP ASD SWBMAEDIE DITISIOH SPECIAUT BSTABLISKD FORCE SPECIALLY SSTABLISEEB FORCE 2 2 HOT V* EA-101 WSB assigned to 11th Sobmarise Squadron. f(l-26, 1-36, 1-37, I-3S) 15 th Submarine DivisionJ (ukl. i_I&. ukH. UkS) (1^7, J-53, I-51*. 1-56) 1 1 Dec 1 ^ HA-lOU vae assigned to 11th Submarine Sqoadron. '(1-177) (EO-lH, HO-1»3, RO-U6, RO-1+7) (HG-1+9, HO-50) 31+th Submarine Division (EO-109. RO-112) U Dec Wt I-53 was transferred from 11th Submarine Squadron to 15th Sntmarine Division. 1-6, 1-12 HA-102 vas assigned to 11th Submarine Squadron. 6 Dec Wt 1-371 *as transferred from 11th Submarine Squadron to 7th Submarine Squadron. Sixt h 1-361, 1-362, 1-363, I~36W 7th 1-365. 1-366, I.367, 1-368 Submarine Squadron 7 Bsc Vt I-Ug was transferred from 11th Submarine Squadron to 15th Submarine Bi vis ion. 1-370 1-52 8th 1-52 eank and was removed from 8th Submarine Squadron. L.165 1 0 Dec ** Submarine Squadron Z-jGh sunk and vas remo-w d from 7th Submarine Squadron. EO-113, EO-115 Jleet CHOGBI I-369 was transferred from 11th Submarine Squadron to 7th Satemriae Squadron. 11th 1-1(2, 1-58 Submarine Squadron 1-369, 1-371. L.372 1-165 was transferred from Sth Submarine Squadron to 19th Submarine Division. RO-55. HO-56 15 DBC UU HA-106 was assigned to 11th Submarine Squadron. 31st Submarine Base Unit Ktma Attached Tore* 631st Air Groop vas attached to Sixth Jleet. TSTKBSEI MAEtJ SASEBO 19ta Sttlsaaalne DiTi»li>n (1-121, 1-122, 1-155, I-15&. 1-157, KDHB U158, 1-159, L162) IUEB Submarine Squadron 15 DBC * 1-165 was transferred from 8th Submarine Squadron to 19th Submarine Division. 33d 8dbBarine Sirisloa (BO.63, SO-6U, BO-67) Kcrta District KUBI BO-62, BO-68, HO-500 buanarine Squadron TOIOSHKA Hav» l 6th Subaarin* OiTiiion (EO-57, HO^5g, BO-59) District - 90 AS OF 15 DSCSMBSR 191+4 , 15 DSCSMMB 191*4 _ 1 ITBHIJAHT 1945 HAVAL DISTHICT COUVKHTED SHIP or ctmssav SHIP OFIT BBSIGSAflOI SHIP AHD lOBHASIBE DIVISION OB OE SEC JJE SUBMAJLI8I SPECIALLY BSTA3LISHBD JOHC1 SPBCIALLT 3STABLISHBD FOBC1 (1-26, 1-36, 1-37, 1-36) 16 BBC 1-13 asBigned to Sixth Fleet. 15 th Submarine Division (LAl, 5, I-U6) (1-47, I-4S, 1-53. 1-5^1 1-5* (t.177) (SO-l+l, BO-l+3, BO-46, EO-1+7) let Submarine SlTisl«n organized and aaelgned to Sixth Fleet. 34th Division. (BQ-49, BO-50) 1-13 transferred from the direct command of Sixth fleet to let Sabnariae (BO-109, BO-112) Division. 30 Dec 1-8, 1-12 1-1+00 assigned to let Siibmarine EA-106 transferred frota 11th Submarine Sqaadron and attached to Seneral Escort 1-361, 1-362, I-363, I-365 7th I-36b, 1-367, 1-368, 1-369 Submarine Squadron 1-370, t-371 1 k 3 HO-55 traneferred from 11th Stthnarine Sqaadroa to 3 +tli Submarine Bi vie ion. Btb Sobmariae Sq. HO-55 , KO-56 BA-101, HA-102, , BA.106 20 Jan TSlMusEI HAHCT transferred from Sixth Fleet to KtTHB Baval District. 31et Submarine Base Unit 27 Jan HA-}.01 transferre d from 11t h Sahmarine Sqaadronto 7t h Sahmarlne Sqaadron. Attached Force 631st Air Group TStTCOSHI KAHTJ 281 Jen 1-351 assigne d t o 11th Sulnarin e Sqtusdrcc. 19th Sabmarlne Division (L-121, 1-122, 1-155, 1-156, L157, , 1-159, I-l62, L-l65) KUHfi Sobmarioe Squadron IfACHI MART7 assigned to KTTHE Submarine Sqxadron. 33d SaBn»rine Division (EO-63, E0-61+, HO-67) Savd Distric t EUEE Satmarine Sqaadroa BO-62, BO-65, BO-500 TOKOSTIKA Haval bth Sutmarine Division (RO-57, RO-58, SO-59) Sistrlet - 91 OBfiAiUZAIIOH AS OF 1 KBEUAHT 19^5 CHAHEBS Df ORGilTIZATIOir, 1 FEBRUARY I9U 5 _ 1 MARCH 19^5 HAVA1 DISTSICT OOrTSRTED SHIP OF CONVBRTED SKIP UNIT DESIGHATION SEIF AHD SUBMAEIHE DIVISION OB OS DATE SQUABECH SHIP ASS SVBMKRim BITISI01I SPECIALLY ESTABLISH3I) FORC5 SPECIALLY ESTABLISHED POECS 3 ?et 1*5 HA-103 assigned to Hth Submarine Scpadron. lBt Submarine Division (1-13, I-"WO, 1-kOl) (1-26, I-36, 1-37, L3S . 1-^1. I-1 *. 15th ^Submarine Division I-U5, 1-1*6, Li*7, l-i*S, 1-53, I-51*, 1-56, 1-58) 5 FeT) I45 HA-1C+ transferred from 11th Submarine Squadron to 7th Submarine Squadron. (1-177) (EO-41, EO-»*3, RO-l*6, RO-47) 34th Submarine Divisiom (EO-U9, EO-50, EO-55} (EO-109, HO-112) 7 Fet 1+5 HA-107 assigned to 11th Submarine Squadron, 1-8, 1-12 Sixth I-361, I-362, I-363, I-365 7th I-366, 1-367, I-368, I-369 HA-102 transferred from 11th Submarine Squadron to 7th Submarine Squadron. Submarine Squadron 1-370, 1-371, 1-372 10 Fel> 1*5 HA-101 H3-56 transferred from 11th Submarine Squadron to 3**th Submarine Squadron. Sth fleet Submarine Squadron RO-113, BO-115 CEDGE I 11th 1-351 19 Feti 1+5 HA-105 assigned to 11th Siibffiarine Squadron. Submarine Squadron RO-56 HA-102, HA-1Q1* 3 th Satiwriae RO-113 and RO-115 trangferrefl from ?th Stibmnrine Squsflron to jl+th Submarine 20 Feb 45 Sqtis dr on BiviBion. Attached Force 631st Air Group 31st Submarine Base Unit nuts deactivated. General Escort Attached Force SA-1O6 Ggmman^ KU&E 19th Submarine Division i( 1-121, 1-122, 1-155, X-I56, 1-157, 2 Feb 1+5 I-P01 assigned to 33d Submarine Division. XUBS [ 1-158, 1-159, 1-162, I-l65> HACHI HABIT XVS& Submarine Squadron Navsl 33d Submarine Division (BO-63, EO-61*, EO-67) District Ik Feb 45 1-20? assigned to 3^d Submarine Division. KTOE Defense Squadron EO-62, HO-6S, RO-500 YOKOHAMA liaval bth Submarine Division (EO-57, EO-5S. SO-59) District - 92 ORGANIZATION AS OF 1 MAECH 19^5 OHAHGSS Df ORGAITIZATIOir, 1 MARCH 19^ 5 _ 1 A?RH 19^ 5 IAVAL PISTHKT COKTBTRTED SHIP OF C0HTE1T3B SHIP US 11 ESSKHATIOS SHIP AHD SUBMARINE DIVISION OB OH DATE SQJTADEOS SHIP ASD SUBMARINE DIVISION SPECIALLY ESTABIISHS5 FOSCB SPECIALLY ESTABLISHED FORCE I-2fi, L37, 1-38, 1-^1, 1-^5, 1-^6 snd L-5^ Bonk and were removed from 15th 1st Submarine Division (1-13, I-AOO, 1-401} Submarine Division. ((1-26. I-36, 1-37, 1-38, L.H1, I-W, 15th Submarine DiTiaicm { 1-^5. I-^B, 1-47, I-'tS, 1-53, ^-^, 10 Mar 45 1-177 and RO-M-7 sank and were removed from 3^*^ Submarine Division. 1 I.56 , 1-58) 1-365 sank and removed from 7th Submarine Squadron. ((1-177) 34th Submarine Division J (RO-l+1, SO-^3, RO-i+6, HO-47, RO-l+9, j EO-50, SO-55, EO-56, EO-109, EO-112, Hi-109 aeeigied to 11th Submarine Squadron. 1^ HO-113, HO-115) lU Mar 45 I-lH assigned to 1st Submarine Division. Sixth I-S, 1-12 EA-109 transferred from 11th Submarine Squadron to 10th Special Attack Squadron. l6th Submarine Division organized and aesigied to Sixth Fleet. 1-361, I-3&2. I-3&3, L.365 7th Submarine L.369, 1-372, HA-101, HA-102 and HA-10^ transferred from 7th Submarine Squadron 7ta 1-366, 1-367, 1-368, 1-369 to lGth Submarine Division. 20 Mar U5 Squadron Submarine Squadron 1-370, 1-371, 1-372 Fleet 1-361, L362, I-363, 1-366, L367, I-368. *-37O and 1-371 were transferred HA-101, HA-102, HA-10U deactivated. from 7th Submarine Sqtiadron to 15th Submarine Division. HJU107 transferred from 11th Submprine Squadron to 33* Submarine Division. CECGSI 11th 1-351 SiibQarine Squadron HA-103, HA-105, EiU107 1-156, I-I62 and t-165 were transferred from 19th Submarine Division to 1 A-or 1*5 Attached Force 631st Air Group 31st Submarina Base Unit TORE 3Uth Submarine Division. General E«cort Attached Force HA-106 10 Mar U5 HA-106 was transferred from General Sscort Command to 33d Submarine Division. Q oflujiflixd. a 19th Sutaarine Division (1-121, 1-122, 1-155, 1-156, 1-157. 1 0 Mar 1*5 EA-106 was transferred from General Escort Command to 33 Submarine Division. I-15S, 1-159, I-1&2, I-I65) KfffiS NACEI KAEU KURS JCUBS Submarine Squadron 20 H « 45 HA-107 was transferre* from 11th Submarine Squadron to 33d Submarine Division. 33d Submarine Division (1-201, 1-202, K0-&3, EO-64. RO-67) Naval L.56, L-lb2 aad I-l65 were transferred from 19th Suomarine Division to District 1 Apr 1+5 KUHE 3'f-th Submarine Division. Submarine Squadron aO-62, E0-6S, E0-50C TOKOSUKA Hfcval 6th Sttbmariae Division (HO-57, S0-5S, RO-59) District - 93 ORGANIZATION AS QF 1 APRIL 19^5 CHATO3S IU OTtOAHIZATIOir. 1 APRIL 19^ 5 1 MAT 19^ 5 UATAL DISTRICT OOUVSHTEE SHIP OF C0N7SR1TO SHIP UNIT DESIGNATION SHIP A3D STOMAHIHB DIVISION OH OR BATS SQTTATRCH SHIP AND suBHUinn: Division SF3CIALLY ^1STABLISH3D FOHC: SPSKIALLT SSTABIISHBD FOKCB 1- Apr ^5 1-351 removed from 11th StLbraarine Squadron and assigned to 15th Submarine Division 1s t Submarine Division (l-13 , l-l1*. I-Uoo, I-UOl) t-362, I-3G8, 1-370, L^71 sunlc, ana removea from 15th Submarine DiTiSiOn. ft 1-36, 1-Uk, L.1+7, i-it8, 1-53, 1-56. 15th Submarine division \ L5S, 1-361, 1-362, 1.363, 1-366, 1.1-367, L-368, 1-370, 1-371) u 1 0 Apr U5 RO-U3 sunk, end removed from 3 th SaBmnrine Division. 1 l6t b Submarine Division (1-369, 1-372, HA-101, BA-102, H&-1O *) 1-203 transferred from 33d Submarine Division to 11th SubmBrins Squadron. Sixth ftl-156, 1-162, 1-165, EO-W, HO-l+6, 3itb Submarine Division <^ KO-49 , HO-50, RO-55. BQ-56, RO-109, IBO-112 , &0-113, E0-115i l U Aor 1*5 1-373 assigned to 11th SuBmarine Squadron. LS , 1-12 1-501 transferred to 11th Submarine Squadron from 33d Submarine Division. 15 Apr 45 HA-103 removed from 11th Submarine Squadron and assigned to l6th SuDmsrine Division. Fleet CHDOSI 11th 1-351 I-157, 1-158, 1-159 assigned to 31l«i Submarine Division from 19th Submarine 20 Apr ^5 Submarine Squadron HA-103, HA-105 Squadron. Attached Force 631et Air Group 31st Subnarine Base XJn.lt KTTR1 Combined 10th EA-109 Ileet Special Attack Squadron 101st Assault Unit TOKOSTO k 7 10 Ai:r 45 1-202 removed from 3d Submarine Division ana assigned to 11th Submarine Squadron, 19th Submarine Division (1-121, 1-122, 1-155, 1-157, 1-15S, 1-159) 12 Apr 1+5 HO-62 removed fron KTTt! Defense Sousidron and assigned to 33d Submarine Squadron. KURS KUKS 33d SuDmarine Division (1-201, 1-202, HO-63, HO-61*, H5-67 1-106 KURi, 15 Apr 1+5 1-201 removed from 33d Submarine DiT i9 i0 a and assigied to 11th Submnrins Squadron Submarine Squadron 1-107) Haval L157, 1-158, 1-159 renoved from 19th SubBPrias Division and assigned to 3^*h EO-62, EO-faS, HO-500 Submarine Division. District 20 Apr ^5 1-121, 1-122, I-155 removed from 19th Submarine Division and assigned to 33* Submarine Division. HO-62, HO-bB, HO-500 Defense Squadron 19th Submarine Division deactivated. YOiQSIffiA Submarines RO-57, R0-5S and HO-59 «ere designated fourth Class reserve submarines daval 6th Submarine Division (EO-57, R0-5S, fiO-59) 1 Hay ^5 District - 94 OBGASIZATIHG AS OF 1 MAY 19H5 CBAS&BS » OESAHIZAIIOK, 1 MAT 1945 1 JTJH2 19 ^ FATAL ElSTEICf OOHTESTBD SHIP CF COMVJUa'JtB SHIP TO IT BBSI5HA2IOH SHIP AHD STIBHAEIKS DIVISIOH OH OR DATE SqUADROtT SHIP AHB STJBHAHIBg DI7ISI0 H SPECIALLY ZSTABLISEBD FCBCJ SPECIALLY SSTABLISHTO FORCS 1st Submarine Division (l-13 , Li**, L400, L-UOl) I_l+g Bank and remored from 15th Submarine Division, 15th Suomarine Division (i-36, LW, I-M-7, I_^g, 1.53. I.56, 10 May **5 L-5S. L-351, I-361, I-363, I-36b, I-367) EO-55, EO-112, RO-113, SO-115 gunk and removed from 3l*th Submarine Division l6t h Submarine Division (1-369, 1-372, HA-101, HA-102, EA-103, HA-lCUO 3^th SulMrine Division (tl56, L157, I-15S, 1-159, 1-162, I-1&5, EO-itl, 20-!+b, EO-49, SD-50, EO-55, fiO-56, HA-105 renoved from llt h Sobnarine Squadron and assigned 1 7 May 1*5 HO-109, HO-112, EO-113, HO-115) to lfith Submarine Division, fleet CHOGEI llth L201 , 1-202, L373 2 5 Vsg M.5 EO-i+1, EO-'+g, SO-56 removed from 34th Suomarine Division. Submarine Squadron HA-105 Attached force fa31st Air 5roup 31st Submarine Base Unit ConblM* 10th 101st Assault Unit MAIZ13BTT HA-109 Fleet Special Attack Squadron YOKOSUXA KUBK 33d Submarine Division (1-121, 1-122, 1-155. RO-&2, EO-63, 5 May U5 EO-68, EO-500 removed from TUR7, Defense Squadron and assigned to 51st Squadron, KACEI HAEU EUR3 Submarine Squadron SO-61+, EO-67, HA-I06, HA-107) KUHK 6 May 45 HA-lOg assigned to 33d Suomarine DiTision. Hava l KCRS EO-68, E&-500 31 May 1+5 HA-^01, HA-202 assigned to 33d Submarine Division. District Defense Squadron - 95 AS tff 1 GEAKJBS W OHGAJTIZATIOS, 1 JTJSS 19^ 5 1 JT3LT HAVAL DISTHE I 0 0H7BBT3D SE IP OF COBT3ETBD SHIP OHII BESIQHATIOH DIVISION OH SQSJADBON SHIF AHD STJBMAS1H3 BI7ISIOH SPECIALLY ESTABLISH ^ FORCS SPECIALLY 3STABLISHSD FOESB 1st Sutmarina Sqttaaron (1-13, H1*. 1-kOO, t-HOl) 1-^, 1-56 sunk aad removed from 15th Submarine 10 Jan U5 EO.US, EO-109 sank and reao-ned fron 3Uth Sutmarina Division. 15th SuDmarlne Division (1-36, I-tt, t.1+7. 1.53, 1-56, 1.58, 1-351, 3-361. 1-363. I-366, r-367) 15 Jan 1-201 removed from 11th Submarine Squadron and assigned to ~$hVn Submarine Divleion Sixth l6th Submarine DiviBion (1-J69, 1-372, HA-1O1, HA-102, HA-1O3, 20 Jan U5 1-373 removed from 11th Submarine Sqaadron and assigned to 15th Submarine Division. Sabaarine DiTislon (1-156, 1-157, L-158, 1-159, 1-162, LI65, RO-1<6, EO-5O, ED-1O9) fleet 25 Jua U5 1-203 a«signed to 11th Submarine Squadron. I-S, 1-12 CHOGBI 11th 1-201, 1-202 HA-103 and EA-105 removed from l6t h Sabmarine Division and assigned to Submarine Squadron 1 Jul i-373 Submarine Division. Attached Force &31et Air Group 31st Submarine Ease Unit EtfflB Combined lOtii 101st Assault tfnit MA1ZOT0 HA-1C9 fleet Special Attack Squadron TOKOSUKA 20 Jan HA.203 assigned to 33d Submarine Division. KUHB 33d Submarine Divisio n (1-121, 1-122. 1-155. HO-62, BO-63, laval Submarine Squadron 10-6^, EO-67, EA-106, EA-107, HA-108, District HA-201, EA-202) 25 Jun HA-204 assigned to 33d Submarine Division. ULIZUBU 51it Naval SO-68, fiO-500 district Squadron - 96 OBGAHIZATIOH AS OP 1 JULY 19V5 OHJOISES xs asaxsiztaiatt, 1 JTJLT 191+5 1 m&vsi 19U5 HATAL BISTEIC T COHVEHTED SHIP OF COHVEBTSD SHIP UNIT BESIGHATIOH SHIP AND SOBMARIKS DIVISHW * OH OH DATS SQUAXEOtf SHIP AND SUBH1EIHB DITISIOH SFBCIAL1T BSTJtBLKHED FORCE SPBCIALI T SSTABLISHEB F0HC3 1s t Submarine Division (l-13 , I-11*. U^OO, I-'tOl) 3 Jui U5 HA-205 asiigned t o 11t h Submarine Squadron. 15th Submarine Division (L.36, I->*7, I_5J, 1-58. L-351. I~3&L, L363 , L366 . 1-367. L-373) 52d Stfbiaarias Squadron organiiea end assigned to Sixth Fleet. 16th Submarine Division (I-369, 1-372, HA-101, HA-102, HA-ltf+) Sixt h 20 Jul H5 EA-201, HA-202 removed from 33d Submarine Division and aeeiened to 52d Submarine 3!+th Saimarine Division (L-I56, 1-157. I-15S, 1-159, L-l62, I-I65 , Division. 1-201, HO-50, HjUlflg, HA-IO5) HA-205 removed from 11th Submarine Sijiadron aid assigned to 52d Submarine Division I-S, 1-12 11th CHOGBI 2h Jui I45 1-1*02 assigned to 1st Submarine Division. Fleet Submarine Squadron 1-202, 1-203 1 *Ug 1-372 removed fron l6th Stitmarine Division. Attached 631st Air Group 31st Submarine Base Unit KTJRB lOlet ^seail t Unit MAIZTMT Combined 10th HA-109 13 Jul 1*5 HA-111 assigned to 10th Special Attack Squadron. Fleet Special Attack Squadron TOKOSmA 15 Jul 1*5 I-5O3, I.5OI* assigned to KTJHB 5aval District. KITES 33d Stamarine Ciyiaion (1-121, 1-122, 1-155, HO-62, EO-63, KHSB Haval SO-Sk, EO-67, HA-106, HA-107, HA-108, NACHI KAHTJ KTJHB 1-155, RO-67 removed from 33d Submarine Division. Submarine Squadron 20 JuJ "+5 District HA-£01, HA-202, HA-203, HA-20U) BA-201, HA-202 reooved from 334 Submarine Division md assigied to 524 Submarine Elvision. XAIZUKJ 51st Haval Squadron E0-6S, flO-500 District 1-501, 1-502 attached to First Southern Sipeditionary Fleet. 15 Jui U5 L5O5, I-506 attached to Second Southern ttzpecLiiionary Fleet, - 97 OEGAHIZATIOI AS Of 1 JBWST 194 5 CEAHGBS XS 0R6AHIZATIOIT, 1 AtTStBT 1945 . 15 AUGUST 194 5 NATAL DISTRICT COHTSETBD SHIP OF CONTBHirBD SHIP TJBIt DJSKHIATIQH SHIP ASS SUEMABBS DITISIOH OB OB B4T3 sqraijEoir SHIP AND STBMABETS DWISICH SP3CIALLT BSTABLISEBE FCEOB SPECIAL! ISTABLISESE 70BCX 4 A»gl45 HA-20S, HAJ209 assigned to 52d Sabnarins Division. let Sabnarine Division (1-13, l-l1*. L-400, 1-401, UkC£) 5 tag 45 31st Submarine Base Unit removed from Sixth Fleet end assigned to 3d. Southern Expeditionary Fleet, 15th Submarine Divisio n (L.36, 1-47, I_53, 1-58, 1-351, L-36lt 1-363, I-366, I-367. 1-373) I-g, 1-12 sunk and removed from Sixth Fleet. 16th Submarine Division (1-369, HA-101, HA-102, HA-104} 10 Aug 45 L-Jol sunk sai. removed from 15th Submarine Division. Sixth 34th SaDoarlne Division (I-156, 1-157, H53. H59 . I~l62, L165. L-201, BO-50, HA-103, HA-105) 11 Ap« 45 RJU210 assigned to 52(3 Submarine Division. 52d Submarine DiriBion (Bi-201, BA-202, HA-205) 14 Aog 45 Si-207 assigned, to 5?d Submarine Division. 1-8, 1-12 L-202 removed from 11th Submarine Squadron and assigned to 15th Submarine Division. Fleet 15 Ang 45 1-156, I-157, X-15Z, 1-159, 1-162, 1-165, 1-201, HO-50, EiU103, HA-105 removed 11th CHOGSI from 34th Sutimariae Division and assigned to 15th Submarine DivlBlon. TORS Submarine Sq.uadron 1-202, 1-203 34th Submarine Division deactivated. Attached Force 631st Air Group 31st Sobmarlne Base tTnit Combined 10th 101st Assault Tfoit MAIZTIHtl HA-109, HA-111 Fleet Special Attack Squadron TOKOEAHA first Southern Expeditionary Attached Force t-501, 1-506 Fleet Second Southern Expeditionary Attached Force 1-505, 1-506 Fleet 1-503, 1-504 KGBB HavA 33d Submarine CiTision (1-121, 1-122, SO-62, BO-63, B0-&U, 10 Aog 45 BO-64 sunk, and removed from 33d Submarine Division. KTJ2B District HA-IOS, HA-107, HA-10S, HA-203, NACHI MAEU rtTHS Submarine Squadron EA^204} KAIZDBU 51«t EO-68, BO-5OO District Squadron - 98 0BGAHI2ASI0H 15 OF 15 AU3CST 1945 RATAL DIETH3ET C0STBBTE11 SHIP OF cosnniETBr SHEP UHIT BSSIGKATION SHIP Hid StJBMASDQt DIVISIOH OE OR SFECIALLT ESTABLISHED FCBCS SPSCIAIIY BSTABLISHED FOECB 1st SasmariiB Division (1-13, 1-1^. 1-400, 1-401, 1-402} ^(1-36. 1-47, 1-53. 1-58) (1-156, 1-157. 1-153. t-159, 1-162, I-165) 15th Submarine Division (I-201, I-2Q2, L-351, I-363. 1-366) K(l_367, 1-373, BO-50, HA-103, EA-105) Sixth 16th Submarine Division (1-369, HA-101, HA-102, HA-104) 52d Submarine Division (HA-201, HA-£02, HA-205, H/U207, HA-208 HA-209, BA-210} Fleet 11th CEOOSI Submarine Squadron L203 Attached Force 63lBt Air Group 10t& Assault Chit KAIZtffitT Combined 10th HA-lOg, HA.111 Special Attack fleet T0EO8TSCA Sqjuadron Firat Southern Expeditionary Attached force 1-501, L.5O2 Fleet Second Southern Expeditionary Attached Force 1-505. L.506 Fleet 1-503. 1-504 STIRS Baval. VJSS 33d Submarine Division (L-121, 1-122, BD-62, EO-63, HA-106, KURB ffiU107, HA-10S, HA-203, Ei-20U) NACrll 1URIT District Submarine Scfiadron HAI8UBU 51st Haval EO-68. ED-500 District Squadron - 99 O a I K 8 5 e w p tB ft IT IT •"" 0 li 0) 10 t) ^ i H < rH i M >*PKI a) ? H w w re i» s s p is o • ft § ft 8! K tO p o £ K CO P •< s0 P irnH IDO K •3 to K t! hH4^ II IO N E* < ff O *** ff co"* ^ £H f* Mi ft K CO w W ID H Are a CHIN A ONIT 1941 194E 1943 1944 1945 DE SIGNATION DEC JAN FEB MA.H APR MAT JDN JT3L AOG SEP OCT NOV DEC JAN FEB MAH APE MAT JOT TtJL AUG SEP OCT NOV DEC JAN FEB MAR APR MAT JUN JOT. AUG SEP OCT NOV DEC JAN FEB MAH APR MAT JUN JUL AUG