(To Accompany Eric"'

The accompanying map of Japanese shipping routes has been substantially revised since the publication of last month!s summary on the basis of completely new data now available• This data is the result of the tracking of actual enemy convoy movements* The principal changes noted from the previous shipping route map are: a) Complete cessation of shipping from Truk and Palau to the Bismarcks. b) Increase in shipping from Palau to the Hollsndia*Wewak area, c) Increased shipping from the Empire into the Caroline (Palau-Saipan-Truk) bases. d) Increased shipping into the Mandates from Balikpapan, e) Increased shipping into Halmahera and transshipments from there to the Manokwari-Sarmi and Ambon-Kai Island areas* f) Increased shipping between Singapore and Balikpapan. g) Reduction of snipping between Singapore and Java* h) Elimination of the Empire-Singapore traffic through the Gulf of Siam, adopted earlier as a protection against Allied submarines. The following routes are shown on the accompanying map in their relative importance:

HEAVIEST 1 Singapore - Empire (via Saigon-Hongkong) 2 Singapore - Empire (direct) 8 Singapore - Balikpapan 19 Davao - Halmahera 23 Halmahera •- Manokwari 26 Empire - Palau 27 Palau - Hollandia 31 Empire - Truk 32 Empire - Saipan

INTERMEDIATE

3 Singapore - Empire (via Manila) 4 Singapore - Davao 13 Balikpapan- Palau 15 Empire - Davao (via Manila) 21 22 Halmahera - Ambon ! 33 Manokwari - Sarmi 34 Hollandia - Wewak LIGHTEST 5 Singapore - Miri 6 Singapore - Batavia 7 Batavia •-- Padang 9 Batavia - Sourabaya (via Semarang) 10 Sourabaya - Koepang (via Soemba) 11 Sourabaya - Balikpapan 12 Sourabaya - Balikpapan (via Macassar) 14 Macassar - Ambon (via Kendari) 16 Philippines (Inter-island) 17 Manila - Palau 18 Davao «- Menado 20'Davao - Palau 24 Halmahera - Babo 25 Ambon - Kaimana - Selaroe 28 Saipan 29 Palau 30 Palau SOUTHWEST PACIFIC AREA

GENERAL HEADQUARTERS SOUTHWEST PACIFIC AREA Military Intelligence Section General Staff JAPANESE SHIPPING ROUTES 1-31 MARCH 1944

FRENC H

INDO­ CHINA

GAFERUT NAMONUITO IS OLOL. • WEST FAYU . • PIKELOT ' MINDANAO •OUMARAO LAMOTREK .• PULAP

DAVAO

MALAY

PENINSULA

LIGHTEST TRAFFIC INTERMEDIATE TRAFFIC HEAVIEST TRAFFIC •GREENWICH FIGURES REFER TO ROUTE NUMBERS (SEE ACCOMPANYING LIST)

ST. MATTHIAS GRR ,- HERMIT IS. <*>MUSSAU ADMIRALTY IS. OELA is rT*^

DUTCH NEW GUINEA BOEROE BISMARC K SEA

TIMOEKA

BANDA SEA

BOUGAINVILLE) BUI N

SOLOMONS SEA

ARAFURA SEA

MILNE BAY

LOUISIADE

INDIAN OCEA N 120 130 140 150 160

CHUNGKING RED FIGURES- NAUTICAL MILES BLUE FIGURES­ HOURS AT 10 KNOTS .CHANGSHA N A BLACK FIGURES-HOURS AT 20 KNOTS GENERAL HEADQUARTERS SOUTH WEST PACIFIC AREA rOOCHOW VBONINS Military Intelligence Section General Staff o MARCUS ID. SURFACE TIME-SPACE FACTORS / /FORMOSA)/ BURMA AKYAB

MARIANA : OR LADRONE

MARSHALL IS.

CA R |66fc. I N E 07 RUK IS . .V :. .I ••V. o •"PONAPE a JALUIT ISA'

.HELEftJ ID

^GILBERT

SUIyiATR

W [GUINEA RltAIN OHBOUGAINVILL

ELLlCE IS.°­

SOEM$A .- .

BRIDES

FIJI ! S > ;

NEW J ST RA L I A CALEDONI II X • x TP S

X \ GA R

X X to

X X

NO e I M X X M - x s _ x M - X X a X XI X X X u _x X X I

CO

CO

SO CO

X

0) CO • FARALLON OL PAJAROS NOTE: NORTHERN BOUNDARY OF

BABUYAN IS. 2ND AREA a 8TH AREA 0 ARMIES UNKNOWN. APARRI •"*•». SOUTHWEST PACIFIC AREA />PA&AN • ALAMA6UAN GENERAL HEADQUARTERS *GUGUAN UZO N SECOND SOUTHWEST PACIFIC AREA LRIANAS TINIAN ISLAND S •AGIGUAN COMMAN D BOUN DARIES 31 MARCH 1944

FRENC H STATUTE MILES IN DO ­ CHIN A V SANTA ROSA ISLANDS 100 0 100 200 300 400 500 SCALE AT THE EQUATOR

JLITH IS. •I A IS 'YAP . GAFERUT MAGUR x x x x N AMONUITO, S : FARAULEP OLOL. -PISARAS .. /•HAUL IS. KAYANGEL . S E CONDI -.A N C -WEST FAYU . ­ su PALAU IS. .PIKELOT ' 3 L A N D S .OLIMARAO /7MUKERU LAMOTREK fPULAP •OROLUK •••WOLEAIIS. EL.ATO " SATAW0 L • PULUWAT °TRUK IS. • PAKIN IFALIK IS. •KiinKU0P p 'NAMA >LOSAP .,OP0NAPE EAURIP1 K -PULUSUK ANT SENYAVIN IS MO; vNAMOLUK ETAL > NGATIK NOMOI :• "LUKUNOR XXX " SATAWAN PULO ANNA \KARAKEU)NG SOUTHERN SECOND •MERIR ^f-.AREA AREA NUKUORO SANGI TOBI . » HELEN XX X ISLANDS •o

••"ASIA IS. •. MAPIA IS lALMAHERA X XX XIX * I I EQUATOR ^ 0 ; LLJ MOLUCCA MAI 0KWAR1 SCHOUTEN l& SEA ^v.,, NINIGO GRR ST. MATTHIAS GRP •^MUSSAU Y Y X X 'Cz>o>i XXX "' WAKDE I ADM JALTY IS. EIGHT H X I X y y y HILLITC LEBES 1 IEW HANOVE

XVI I I | TABAR GR <3"LIHIR.GP NEW IRE i«D*- BOEROE I S MARC K SE A NORTH EAST ^MANAM «*FENI JAVA SEA ^^ ^ XXX NEW GUINEA BANDA SEA KAI IS JMADANG XX X XXX Q LONG I C.GLOUCESTER X V I ^NEW BRITAIN GTONG tf JAVA ^FINSCHAFEN GASMATA BOUG KANGEAN I FLORES SEA PAPUA V TREASURY? SOLOMONS SEA VELLA LAVELL

ARAFURA SEA ':• ^TROBRIAND l& BUNA 0

-vGOODENOUGH ID. >3tsV00DLARK ID. < 'XSOEMBA v —(_ \5\WAINGAP0E GUADALCANAL^ 10

O CHRISTMAS 10. MILNE BAY

LOUISIAD E ARCHIPELAGO

TAGULA INDIA N OCEA N

100 SOUTHWEST

GENERAL HEADQUARTERS SOUTHWEST PACIFIC AREA MARIANAS ISARIGAN - ANATANAN Military Intelligence Section 33 I.M.? General Staff

PHILIPPINE n0SAIPAN B TINIAN ENEMY GROUND DISPOSITIONS •AGI6UAN 31 MARCH 1944

rUTE MILES =a—— 100 200 300 400 500

SCALE AT THE EQUATOR

Reproduced by Engineer Intelligence Section, OCE, GHG, SWP£

PALAWANyWPUERTO PRINCESSA

X3L, OLOL. >PISARAS .. .-'-HALL IS. ' ^;N 3c5 ? ... A R o • WEST FAYU \ NGULU IS. -SOROL •PIKELOT • OLIMARAO LAMOTREK ;PULAP ..'WOLEAIIS. EL.ATO ' SATAW0L 'PULUWAT

IS. TALAUR IS.

AKARAKELONG MALAY

PENINSULA

CELEBES SEA

MOLUCCA \ 0 >KWARI S SEA

[RAM S

CERAM

DUTCH NEW GUINEA

NG l.<0 C.GLOUCESTER

SOLOMONS SEA

f^TROBRIAND IS.

iOOOENOUGH ID. <5>^VOOOLARK ID

3UADALCAN

MILNE BAY 100 105 no 115 120 125 130 I3S 140 145 150 155 160 165 lltfU 23 lll

I URACAS

20 • MAUG

• WAKE ID.

APARRI LAOAG. . PAGAN VIGAN. -TUGUEGARAO MARIANAS IS. BAGUIO LINGAYANo QSA N MANUEL SOUTH 1070 CLARK F.ELD^ ™ , SAIPAN 15 MARIVELES^ TINIAN 5 MANIL/P* NICHOLS FIELD*1 PHILIPPINE BATAN6AS**TAN f • LUCENA ATATE LIP oNAGA CHINA CALAPAN* . LEGASPI OBULAN

_iACLOBAN SAN JOSE • tgABRICA • SEA ILOILO* 2-BACOLOD MARSHALL* iO OPOlif LAHUG FAIS 0 PUERTO SIPALAYo CEBU O9ILAA PT. KAIJIEN YAP PRINCESA • WOTJE DUMAGUETE PANGINOMAN fTAROA CAGAYAN JSLANDS Q ( DEL MONTE TA0UM BABELTHUAP (} _TARAKABESAN PARAM • • WOLEAI ]»SAMAL p ELELmAMAKARAKAR iv/» U (EIL MALK) DUBLQ N % LANGAR ID. KUDAT# TEN MAL o'PADADA TRUK CAROLINE PONAPE m.-EMIDJ # MILI JESSELTON. .SANDAKAN ENYBOR • JALUIT RANAU LABUAN ID.* LAHADATU • SATAWAN • KUSAIE KENINGAU ^TAWITAWI TAWA0 L E B E S SEA NATOENA kTARAKAN - IS. n HELEN ID. PITOE (DOROEBA) MAPANGET-, LELA*.S.T I GILBERT KUCHING GA LANGOANt -»wm SINKAWANG U 9 L. TONDANO S KAOE©o « GREENWICH ISLANDS BORNEO OBAc L0L0BATA SAMARINDA H E. SAMARINDA H W.#» •NAURU ID. MELAK WEST MANOKWARI ~l LABOEH JEFMAN. 9 KAMIRI SAMATEcf i,n am #MUSSAU ID. WAREN bMAFFIN /CELEBES BOELA I SAGAN HOLLANDIA,. AM I KAVIENG#% PANAPAI CYCLOP??* I 1BALGA I •; > T -WEWAK DYAUL ID.^ MALIMPOENGi ( wmtATI, 9NABIRE SENTANI GENERAL HEADQUARTERS NAMLEA3r BLUP BLUP ID. o NAMATANAt • ^KENDARI L UTAROM' *ETNA BAY JA WAR •w DR SOUTH WEST PACIFIC AREA • POMELAA SEPIK R. NUBIA I A V A SEA TIMOEKA MACASSAR ^»MANDAI Military Intelligence Section ALEXISHAFEN I-!* * ^BUKA LIMBOENG# #BAOE BAOE DOEROA-JWELAH QQQQ • MADANG H0SK.NS.OP0RAP0RA General Staff BOELOEDOWANG* BATAVIA o B A N u A LANGGOERCTCEAL/TABERFAN^^RCEAL/TABERFA E NEW GUINEA KEI^IAJORAN. WAIinlAT 1 a GASMATA KAU0JAT FAAN*1T ALARDJIR ENEMY AIR BASES T^IUTAN t .• SEMARANG^_OERABAJA ^ . LETFOEAR- ODOKABARAT KARA** KAHILI F L 0 R E S * SEA ?RANGAN« FA|S1€ *BALLALE SOUTH WEST PACIFIC AREA BANDOE N 6 # S O ERAKAR T ; . Zvfi£S£ PERAK ^AN,MBAR IS " SOLOMON IS 31 MARCH 1944 DJOKJAKARTA*. • . .MALANG ^^^ * SAUMLAKSAUmi I ?.o ^ \ DILLI «w DEN PASAR MERE i an C. LORE '?=». ft. ATAMBOEA FUILORO WAINGAPOE IO \ . KOEP EET ' |C^^ . 10 CHRISTMAS I KOEPANG (GOLF c < NAUTICAL MILES • OPERATIONAL AIRDROMES 0 100 300 400 500 800 ONEMBRALA O AIRDROMES UNDER CONSTRUCTION \\\\\\\\\\vw \v 15' /«• <5> SEAPLAr ' io­ 5" O' 5 5* 10 . fJITfTTj ,10' 1° //////// \ 15*

23.£* //////////L. 100 NAUTICAL MILES - 115-15 STATUTE MILES 15 =Lx 100 105 110 115 120 125 130 135 140 160 ARMY AIR SERVICE

AIR ARMY SOUTHWEST PACIFIC AREA Oo| AIR DIVISION GENERAL HEADQUARTERS SOUTHWEST PACIFIC AREA Military Intelligence Section NAVAL AIR SERVICE General Staff ENEMY AIR ORDER AIR FLEET OF BATTLE SOUTH WEST PACIFIC AREA AIR FLOTILLA 31 MARCH 1944

FRENC H OO|AIR GROUP IN DO - CHINA ••• SANTA ROSA MICRONESIA F B R TTL 300 329 74 703

PALAWAN/qPUESTO PRINCESS*

OCI3-*

PHILIPPINE N.E.I. (LESS SUMATRA) THMM m ——— — —————— — —*«^ MALAY F B R T T PENINSULA 239 161 129

CELEBES SEA

N.E. SECTOR

LAN D * V TANGA IS. kVEWAK tf W GUINEA BISMARCK SE A

T/OEKA\ \ /tKARKAR

'ONG 1-0 C.GLOUCB^ER

TREASURY? CHOISEUL

VELLA LAVELLA^ v "EORGIA <;C3/_^ •** ­ ARAFURA SEA f^TROBRIAND IS.

5000ENOUGH ID. ^tiVOOOLARK 10.

NDIAN OCEAN

100 (To Accompany Encl 16)

ENEMY MERCHANT SHIPPING 31 March.. 1944 The accompanying graph is based on aircraft sightings of merchant tonnage in the North East New Guinea area during the month of March. TONNAGES ESTIMATED TO HAVE ENTERED NORTH EAST NEW GUINEA PORTS March 1944

PORT TONS

Hansa Bay 14,300 Wewak 62,800

Aitape 15,000 Hollandia 103,500 HOLLANDIA 16 - WEWAK Mill General Staff AITAPE fi O p o f- i -••->•.- f p q Ur ™ £_ u b Li ii.l d I .;; o HANSA BAY MERCHANT SHIPPING NORTH EASTERN SECTOR TONNAGE 31 MARCH 1944 35 000

30 000

25000

20 000

15000

10 000

5000

2 3 4 5 6 7 8 9 10 II 12 13 14 15 16 17 18 19 20 21 22 23 24

MARC H 194 4

K \ (To Accompany End 17)

ENEMY 31 March 1944

The accompanying graph showing shipping in certain North Western Sector ports during March is based largely on sources other than sightings, except in the case of the figures for Manok­ wari and Halmahera on 23 March when aircraft reconnaissance observ­ ations were available. TONNAGES ESTIMATED TO HAVE ENTERED NORTH WESTERN SECTOR PORTS* March 1944 PORT TONS Manokwari 74*400 Halmahera 138,446 Ambon 82,770

Note? *Actual data available only to 21 March for Manokwari, 15 March for Halmahera, and 23 March for Ambon| estimated monthly totals based on the assumption that shipping con­ tinued for the balance of the month at the same rate. MANOKWARI H C*«isr AMBON

HALMAHERA U ~* ^— OQ U XiiXct U c; o

MERCHANT SHIPPING NORTH WESTERN SECTOR TONNAGE 31 MARCH 1944 70 000

60 000

50000

40000

30000

20 000

10000

I 2 3 4 5 6 7 8 9 10 II 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 MARCH 1944 18'

CM 1 O H 51

- II I x x x <0 * y i 1 1 a

o a> to O rH 0) CA C"\ rH CO CM CM o 03 (D -P o mm J3 n CO to

o o a -P 0) •H OL I I I CO 82 «J Q H 8 8 B CO 3» t»OCo O

as ^j

r-l a.

3

to •P 0 3 OO CO O I 3

O CO O I I

to o o CM CM O en CM CM CM —X i n x z x to X 1 I 1 I I I J4L y M r-i c> x X DEOI4SSIFIE0 Accompany Encl IB) JAPANESE ORDER OF BATTLE, NORTH EASTERN SECTOR, S.17.P.A. 31 March 194-4 a) Headquarters at Tokio, Document indicates 8th Area Army directly responsible to Imperial G.H.Q. b) Hq Rabaul. C/G General Hitoshi IMAMURA. In charge NE Sector, E of 1^7°. Controls 17th Army. Directly under Imperial G.H.Q, Code GO 7960. c) Recently established at Davao. Commands 2nd, 18th and 19th Armies. Code TERU. d) C/G Lt. Gen. Yasushi SAKAI. Believed withdrawing to Rabaul. Bulk Div New Britain - elements on Bougainville. Cede TSUKI 73OO-? e) C/G Lt. Gen. Sadaaki KAGESA. Division decimated Gaudalcanal and Buna, reformed and assigned Defense Sector at Rabaul, Bulk Div in Rabaul, with battalion Admiralty Islands. Code NUMA 8920-? f) C/G Maj. Gen. Iwao M&TSUDA. Believed withdrawing to Rabaul, 122nd Regt in Mandates - U2nd Regt last identified in Phil­ ippine Islands. Code NATSU 9850-? g) Located in Rabaul by documents. Strength not known. h) Indications bulk 1st Ind Mixed Regiment at Kavieng with battal­ ion in Admiralties. i) Bulk believed withdrawn from Solomons to New Ireland, Believed composed of Kure 6, Yokosuka 7 and possibly Maizuru 4. j) Hq Buin? or Buka. C/G Haruyoshi HYAKUTAKE. Charged operations Bougainville area. Code OKI 9811. k) C/G Lt. Gen. Masatane KANDA. Part 13th Inf lost New Georgia area, but bulk Div located Bougainville. Code AKIRA 9O15-? l) Composition unknown but possibly made up Sasebo 6, Yokosuka 6, Maizuru 8 SLFfs. Believed dispersed Rabaul-New Ireland-Bou­ gainville area. m.) Composition unknown except Kure 7. Believed in Bougainville area. n) Hq Wewak area, Adv Hq Hansa Bay. C/G Lt. Gen. Hatazo ADACHI. Charged operations New Guinea east of H0°. Code MO 7910. o) C/G Lt. Gen. Shigeru KATAGIRI. Believed withdrawn from Madang area to Hansa Bay. Code ASA 2O5O-? p) C/G Lt, Gen. Goro MANO. Division believed charged with defense of Madang area. Code KAWA 356O-? q) C/G Lt. Gen. Hidemitsu NAKANO. Division believed reforming at Wewak. Code MOTO 2800-? Accompany En d 19)

ENEMY ORDER OF BATTLE - STRENGTH ESTIMATES NORTH EASTERN SECTOR, S.W.P.A. 31 March 1944

29 Feb 1944 31 Mar 1944 Remarks NEW GUINEA; Madang area (incl 18,000 14,000 Bulk 41st Div, misc Mugil-Karkar and A/A, Engr units. In­ south) dications that part of 41st Div may with­ draw to Hansa Bay.

Hansa Bay 11,000 14,000 Adv Hq 18th Army. Bulk of 20th Div. Misc A/A & base trps.

Wewak 10,000 16,000 Bulk of 51st Div. Misc troops, 18th Ar­ my Hq at Boiken,

Aitape 300/1,000 3,000 Poss el 52nd Const Duty Co and u/i trps.

Vanimo-Hollandia 4,000 12,000 6th South Sea Det and misc troops. Increase in estimated strength based on cumulative intelligence.

Sub-total 43,300/44,000 59,000

BISMARCH ARCHIPELAGOS

Rabaul area 40,000 50,000 Bulk of troops in New Britain believed now concentrated at or destined for Rabaul; believe outposts only are ultimately to re­ main in East Central New Britain. Combat forces include el 17th Div, 38th Div, 65th Brig, misc SNLPn

New Ireland 10,000 Hq 8th Comb SNIP; 81st Defense Groups Det Yokosuka 5 & 7 SLF'sj 12th Pioneers, 1st Ind Mixed Regt (- Bn)j tank unit, & poss el 38th Div.

Admiralty Islands 4,000 500 Remnants of the fol­ lowing! el 51st Tpt Regt| Bn of 1st Ind Mixed Regt; el 38th Div| misc troops.

Sub-total 64,500 60,500 29 Feb 1944 31 Mar 1944 Remarks SOLOMONSi

Short land s -Ba ll a le 2,000 El 23rd Inf, /+th Gar­ rison Unit and misc troops. Possibly evacuating.

Bougainville Southern Sector 7,000 12,000 6th Div (bulk), el (South of line Empress 17th Div, Engr? A/A, Au gu st a -T oe imonapu B ay s) Arty & L of C trcops, plus SNIP'S,

Eastern Sector 5,000 3,000 Poss remaining el 45th (East coast) Inf & misc troops. Northern Sector 7,000 4,000 Det Sasebo 6, A/A, FA (Buka Passage Area) & Naval troops. Choiseul 1,000 1,000 Remnants from New Georgia area - evacu­ ating? Sub-total 22,000 22,000

AGGREGATE 129,800/130,500 141,500 * No change in strength estimates. N.B. Solomons estimates considered as partial evacuation. SAE ID.

T MANtl ID MATTHIAS GP. EASTERN SECTOR MUSSAU ID.

GENFRAL HEADQUARTERS ADMIRALTY IS . SOUTHWEST PACIFIC AREA LOREN6AU Military Intelligence Section yfc |8 COMB. General Staff NEMY GROUND DISPOSITIONS •lOLLANDIA HUMBOLDT BAY NORTHEASTERN SECTOR AIIIMO 31 MARCH 1944

X'iNUGURIA IS BISMARCK SEA DUTCH NEW GUINEA

' , »%KILINAILAU IS.

\BUKA ID

CAp E GL0UCESTE R BUKA PASSAGE

ROOKE VITIAZ ST 'P~. BOUGAINVILLE ID

PAPUA

HUON GULF ALAMAUA CHOISEUL SOLOMONS SEA

>MOROBE .GARAINA ) DONA

71 AND IS. A^ A

GULF OF PAPUA KITAVA Ib. RENDOVAST' ^p S

FERGUSSON ID.

TORRES SfRAlt ILNE6 ; M-iJ^> LOUISIADE ARCHIPELAC HORN ID. . ' . MISIMA ID. ARAF.URA SEA CAPE YORK ' \SAMARAI O'A

145 I5O( 155° company End

ESTIMATED ENEMY STRENGTHS, N E NEW GUINEA 31 March 1944

Mobile j Base Units Date Combat jDefense Service Total 1 Hollandia I El 51 Div? (Repls?) 2/44 ! 1000? i 1000 Poss El 36 Div 9 9 6th South Sea Det.* 3/44 ! 3000 3000 1 Bn of U/l Howitzer 2/44 9 i ? 66 Fd A/A Bn 1/44 1 550 550 3 Ind Fd AA Co 1/44 ! 1 150 150 39 Fd AA Btry 1/44 ! I 125 125 El BS Fd AA Bn ? 3/44 | 400 400 El 2 Base Force ) 1 500 500 El 90 Guard Force) 2/U 36 Fd Rd Const Unit 1/44 1 200 200 26 Sp Const Duty Co ? 1/44j 1 350 350 El 31 Const Duty Co 2/44! i 150 150 El 49 Const Duty Co 1/44 i 150 150 El 52 Const Duty Co 2/44 175 175 El 3 Fd Tpt Unit (HQ?) 1/44 1 100 100 El 42 Ind MT Bn 1/44 i 200 200 16 Sig Unit $ 50 50 El 18 Army Sig Unit 2/44 125 125 El 18 Army Med Unit ; 100 100 El 113 L of C Hosp 1/44 1 100 100 El 79 L of C Hosp 3/44! } 150 150 El 54 L of C Sector Unit 1/44 ! 500 500 27 Fd Ord. Depot Branch 1/44 I I 200 200 27 Fd Freight Depot Branch 1/44 I I 200 200 27 Fd MT Depot Branch 3A4i 1 100 100 30 Fd MT Depot 3/44| I 150 150 31 Anchorage Branch (HQ) 1/44! J 150 150 49 Anchorage Branch 3/44 100 100 El 4 Sea Tpt Bn 3/44! } 200 200 El 3 Debark Unit 3/44! J 200 200 El 9 Debark Unit 3/44! I 200 200 10 Sea Duty Co ? 6/43! 200 200 El. 59 Sea Duty Co ? 3/441 ! 100 100 i 106 Sea Duty Co 6/yi j 200 200 El 1 Fd Shipping Depot 1A4 i 50 50 El 3 Fd Shipping Depot 3/441 I 50 50 El 4 Shipping Const Unit 1/441 j 100 100 El 5 Shipping Engrs 3/44 1 100 100 209 Airfield Battalion 2/44 { 300 300 El 13 Airfield Const Unit 2/44 I • 125 : 125 El 19 Naval Pnr. Unit • 4/43 i: 300 300 El 103 Naval Pnr. Unit 5/431 1 300 300 El 8 Naval Pnr. Unit 6/431 j 300 300 4 Fd Airdrome Const Unit ? 3/441 1 i 150 150 El 22 Airdrome Bn 3/44 I ! 200 200 El 14 Fd Air Repair Depot 3/44 1 | 1 50 50 El 18 Army MP Unit 3/44J i \ 50 ! 50 El 4 Mobile Repair Sec, 3/44! j I 50 ! 50 El 5 Air Sig Regt. 2/441 \ 100 | 100 s •i [ 12300 Total | 4000 | 1725 1 6575 -* Possibly connected with 51st Division.

NOTE: Rapid increase in estimated enemy strength this area is a result of cumulative intelligence received during March, Jl*l» irooxLe Base Units Date Combat Defense Service Total Aitape Poss, El 20th Division 1500 1500 El. 52 Const Duty Co 1/44 100 100 El* 3rd Debark. Unit 1/44 200 200 El. 31 Anchorage Branch 3/44 100 100 A/A, Engr, Med, and Sig. 300 500 800 El 1 Debark Unit 3/44 400 400 El 4 Sea Tpt Bn 3/44 150 150 r Total 1500 300 1450 3250 In view of use as staging area, strength may fluctuate as much as 1500. Indications that elements of jilst Division may be due.

Wewak El 51st Div 2/44 7500 7500 El SNLP 400 400 El 85 Def Grp (Naval) 61 Fd AA Bn 5A3 , 62 Fd AA Bn 5/43 El 64 Fd AA Bn ? lM 40 Ind AA Btry 5/43 41 Ind Fd AA Btry 3/44 1 Ind S/L Co 5/43 Bulk 4 Ind S/L CO 5/43 I 12 Ind Engr 6/43? I 36 Ind Engr ? 2/44 18 Army HQ 1/44 35 Rd Const Unit 40 Rd Const Unit 11/43 31 Const Duty Co 2/44 51 Const Duty Co 6/43, El 52 Const Duty Co 1/44! 46 Fxd Radio Unit 6/43 El 3 Sig C©? El 5th Air Comm Regt 5th Ind Radio Plat 9th Fxd W/T Unit El 18th Army Comm Unit 44 L of C Unit 90 L of C Unit 117 L of C Hosp El 49 Cas Clearing Plaii El 63 Cas Clearing Unit 26th Fd Freight Depot Br? 27th Fd MT Depot Branch 27 Fd Ord Depot Branch 27 Fd Freight Depot Br 31 Anchorage Branch 49 Anchorage HQ El 4th Sea Tpt Bn 1st Shipping Depot Branch El 5 Shipping Engr 37 Sea Duty Co 40 Sea Duty Co (l Plat) 42 Sea Duty Co 49 Sea Duty Co., (l Plat) 25 Airdrome Bn 51 Airdrome Bn 24 Airdrome Co 19 Airdrome Const Unit 46th Ordnance El 1 Ship Const Unit El 39 Ind M/T Bn Units Total Wewak (Cont) El 13 Fd Drome Const Unit 100 El 54 L of C Sector Unit 50 48 Fd Rd Const Unit ! 3/44 | 150 49 Const Duty Co., 1 Plat I 3/44 I 50 El 30 Ind Engr I 3/44 I 100 El 14th Fd Air Repair Depot Br i 1/44! 50 El 1 Debarkation Unit (bulk Aitape) 100 100 9 Debarkation Unit 3/44! 400 400 El Shipping Comm. Regt 3/44 1 50 50 4 Air Intel HQ 1/44 | 50 50 El 7th Fd Const Unit 100 100 El 86 Airdrome Co 2/44 I 100 100 34 Fd Mach Can. Co 10/43 I 100 100 35 Fd Mach C&n. Co 10A 3 I 100 100 Total 7900 2275 6175 16350

Hansa Bay - Cape Gourdon El 20th Division 3/44 i 8000 8000 El 65 A/A Bn 200 200 85th Guard Force ! 3/44! 300 300 El 56 Fd A/A Bn | 5/43i 230 230 1 Btry 63 Fd A/A Bn? i 2/44! 130 130 El 38 Ind AA Btry ? 5/43! 50 50 El 4th Fd AA Unit (Bn?) 1/44! 300 300 El 4th Ind s/L CO 5/43! 20 20 33rd Ind Engr 3/44! 300 300 3 Ind S/L Co 5/43! 75 75 8 Ind S/L Co 6/43! 75 75 36 Ind Engr Regt 12/431 525 525 El 8th Naval Const Unit? 1/44! 200 200 El 1st Debarkation Unit (l Sect ) 3/44! 75 75 9th Debarkation Unit 1 Co 3/44! 150 150 41 Tpt Regt? 10/43! 800 800 1 Co 4th Sea Tpt Unit 3/44! 175 175 27 Fd Freight Depot Br 7/43! 40 40 Poss 27 Fd Ord Depot Br 5/43! 40 40 27 Fd MT Depot Br 5/43! 40 40 ... 112 L of C Hosp • 1/44! 100 100 El 23 Water Purif Unit 7/43! 75 75 49 Anchorage Branch 3/441 60 60 El 1st Shipping Group 3/44! 100 100 El 5 Shipping Engrs 3/44! 200 200 El 9 Shipping Engrs? 3/44! 300 300 El 6 Airdrome Const Unit 9/431 125 12p El 11 Airdrome Const Unit 5/431 125 125 El 3 Ind Tpt HQ 1/44! 100 100 8S Land Duty Co? 5/43! 125 125 El 2 Ind M/T CO? 5/43! 75 75 37 Road Const Unit 6/43J 150 150 44 Road Const Unit 1/44! 150 150 23 Airdrome Co 1/44| 150 150 Adv HQ 18th Army 3/44! 9 9 46 Casualty Clearing Unit 7/43] 50 50 48 Casualty Clearing Unit 50 50 it lit i Total 8000| 2205 3455 13660

Madang - Uligan 41st Div 237 Inf 2500 238 Inf 1200 239 Inf 2500! 2500 - 3 ­ Units I Service Total Madang - Uligan (Cont) 41st Arty 1500 41st Engrs 700 41st Med Unit 600 600 HQ, Sig. etc, 500 500 2 Btry 56 Fd AA Bn 75 1 Btry 53 Fd AA Bn El 63 Fd AA Bn 75 El 38 Ind AA Btry 250 2 Ind S/L Co 75 37 Ind Engr Regt 75 3 Ind Engr Regt 400 8 Ind Engr Regt (-1 Co) 500 96 Ind Engr Unit (Bn?) 500 El 2 Base Force 3A4 . 400 El 20 Fd Mach Cannon 3/44 | 400 123 L of C Hosp 9/43 | j 100 50 El 63 Cas Clearing Unit 3/44 ! I 50 100 El 74 Cas Clearing Unit 11/43 I | 50 50 El 75 Cas Clearing Unit 11/43 | 50 50 El 23 Water Purif Unit 6/43 I 50 50 44 L of C Branch 7/43 ! 50 50 El 54 L of C Branch 12/43 50 27 Fd Freight•Depot Br 11/43 ! 50 I 50 50 27 Fd Ordnance Depot Br 7/43 I 50 50 27 Fd M/T Depot Branch 7/43 50 43 Const Duty Unit (l Co)? I 50 50 49 Anchorage Branch 2/44 I 5° 50 81 Land Duty Co 7/43 50 El 9 Shipping Engr 3/44 I 50 50 El 6 Airdrome Const Unit 1/43 j 50 500 El 11 Airdrome Const Unit 5/43 i 500 50 El 21 Airdrome Bn 7/43 I 50 50 El 86 Airdrome Co 3/44 I 50 100 El 31 Rd Const Unit, Fd 8/43 ! IOO 50 El 38 Fd Rd Const Unit 1/44 ! 50 25 4 Engr Grp (HQ) 8/43 I 25 150 El 1 Ind M/T CO 4/43 ! 150 150 4 Ind Radio Plat 4/43 ! 150 El 4th Fd Tpt HQ 1/44 ! 75 100 El 9 Debarkation Unit 2/44 i 15 100 Total 7700 | 3500 j| 3161050 14365 ! ioo NOTE: Some Miscellaneous Airdrome, Engr, and Road Const, Troops listed here probably withdrawn north but no definite evid­ ence. There are indications that the bulk of 41st Division may withdraw to Hansa Bay. 148

MANUS ISLAND <3P £—' I <^L~—-500 12,000 . AT LEAST 4000 MOBILE COMBAT VANIMO 16,000 NORTHEAST INCL. 8000 MOBILE COMBAT || 6 SOU. SEA GENERAL HEADQUARTERS 3000 SOUTH WEST PACIFIC AREA I (REPLACEMENTS I) INCL. 1500 Military Intelligence Section MOBILE COMBAT General Staff ENEMY DISPOSITIONS 31 MARCH 1944 14,000 INCL. 8000 MOBILE COMBAT 20 30 THIS IS A STAGING AREA, •••==••1 STRENGTHS WILL FLUCTUATE. STATUTE MILES

DUTCH 14,000 INCL. 8000 MOBILE COMBAT B>r SIJARCK

NORTH GUINEA

GUINEA

fJ)TOLOKIWA I.

PA P U A

140 141*