U.S. Army Combat Units 1 September 1939

ABBREVIATIONS AA - Antiaircraft Bde - Brigade Bn - Battalion CA - Coast Co - Company Cp - Camp CZ - Canal Zone Div - Division Engr - Engineer FA - Field Artillery Ft - Fort How - Howitzer Inf - Infantry PI - Philippine Islands PR - Puerto Rico Regt - Regiment Res - Reservation TA - Territory of TA Trk - Truck

ARMIES First Army, Ft Jay, NY Second Army, Chicago Ill Third Army, Ft Sam Houston, Tex Fourth Army, Presidio of San Francisco, Calif ARMORED UNITS Armored Brigade Provisional Tank Brigade, Ft Benning, Ga UNITS 1st Cav Div, Ft Bliss, Tex Provisional Bde, Ft Myer, Va 1st Cavalry Brigade, Ft Clark, Tex 2nd Cavalry Brigade, Ft Bliss, Tex 7th Cavalry Brigade (Mechanized), Black Lake, NY 1st Cavalry Regiment (Mechanized), Ft Knox, Ky 2nd Cavalry Regiment (Horse), Ft Riley, Kans 3rd Cavalry Regiment (Horse-Mechanized), Ft Myer, Va 4th Cavalry Regiment (Horse-Mechanized), Ft Meade, SD 5th Cavalry Regiment (Horse), Ft Clark, Tex 6th Cavalry Regiment (Horse-Mechanized), Ft Oglethorpe, Ga 7th Cavalry Regiment (Horse), Ft Bliss, Tex 8th Cavalry Regiment (Horse), Ft Bliss, Tex 9th Cavalry Regiment (Horse) (Colored), Ft Riley, Kans 10th Cavalry Regiment (Horse) (Colored), Ft Leavenworth, Kans 11th Cavalry Regiment (Horse), Presidio of Monterey, Calif 12th Cavalry Regiment (Horse), Ft Brown, Tex 13th Cavalry Regiment (Mechanized), Ft Knox, Ky 14th Cavalry Regiment (Horse), Ft Des Moines, 26th Cavalry Regiment (Horse) (Philippine Scouts), PI

1 COAST ARTILLERY AND ANTIAIRCRAFT ARTILLERY UNITS Coast Artillery Brigade Hawaiian Separate CA Bde, Ft DeRussy, Coast Artillery Regiments 1st CA Regt (Harbor Defense) (Type C), Ft Sherman, CZ 2nd CA Regt (Harbor Defense) (Type A), Ft Monroe, Va 3nd CA Regt (Harbor Defense) (Type A), Ft MacArthur, Calif 4th CA Regt (Harbor Defense) (Type C), Ft Armador, CZ 5th CA Regt (Harbor Defense) (Type A), Ft Hamilton, NY 6th CA Regt (Harbor Defense) (Type C), Ft Winfield Scott, Calif 7th CA Regt (Harbor Defense) (Type B), Ft Hancock, NJ 8th CA Regt (Harbor Defense) (Type B), Ft Preble, Maine 9th CA Regt (Harbor Defense) (Type A), Ft Banks, Mass 11th CA Regt (Harbor Defense) (Type B), Ft HG Wright, NY 13th CA Regt (Harbor Defense) (Type A), Ft Barrancas, Fla 14th CA Regt (Harbor Defense) (Type A), Ft Worden, Wash 15th CA Regt (Harbor Defense) (Type A), Ft Kamehameha, Hawaii 16th CA Regt (Harbor Defense) (Type A), Hawaii 52nd CA Regt (Railway 8-inch Gun), Ft Hancock, NJ 59th CA Regt (Harbor Defense), Ft Mills, PI 60th CA Regt (AA) (Semimobile), Ft Mills, PI 61st CA Regt (AA) (Semimobile), Ft Sheridan, Ill 62nd CA Regt (AA) (Mobile), Ft Totten, NY 63nd CA Regt (AA) (Semimobile), Ft MacArthur, Calif 64th CA Regt (AA) (Semimobile), Hawaii 65th CA Regt (AA) (Semimobile), Ft Winfield Scott, Calif 69th CA Regt (AA) (Semimobile), Ft Crockett, Tex 91st CA Regt (Harbor Defense) (Philippine Scouts), Ft Mills, PI 92nd CA Regt (Harbor Defense) (Philippine Scouts), Ft Mills, PI Harbor Defenses Harbor Defenses of Balboa, CZ Harbor Defenses of Boston, Ft Banks, Mass Harbor Defenses of Charleston, Ft Moultire, SC Harbor Defenses of Chesapeake Bay, Ft Monroe, Va Harbor Defenses of Columbia River, Ft Stevens, Ore Harbor Defenses of Cristobal, CZ Harbor Defenses of Delaware, Ft Miles, Del Harbor Defenses of Eastern NY, Ft Totten, NY Harbor Defenses of Galveston, Ft Crockett, Tex Harbor Defenses of , Ft Shafter, Hawaii Harbor Defenses of Key West, Ft Taylor, Fla Harbor Defenses of Long Island Sound, Ft HG Wright, NY Harbor Defenses of Los Angeles, Ft MacArthur, Calif Harbor Defenses of Manila & Subic Bays, Ft Mills, PI Harbor Defenses of Narragansett Bay, Ft Adams, RI Harbor Defenses of New Bedford, Ft Rodman, Mass Harbor Defenses of Pensacola, Ft Barrancas, Fla Harbor Defenses of Portland, Ft William, Maine Harbor Defenses of Portsmouth, Cp Langdon, NH Harbor Defenses of Puget Sound, Ft Worden, Wash Harbor Defenses of San Diego, Ft Rosecrans, Calif Harbor Defenses of San Francisco, Ft Winfield Scott, Calif Harbor Defenses of San Juan, Ft Brooke, PR Harbor Defenses of Sandy Hook, Ft Hancock, NJ Harbor Defenses of Southern NY, Ft Hamilton, NY Harbor Defenses of Wilmington, Wilmington, NC

2 ENGINEER UNITS Engineer Regiments 5th Engineer Combat Regiment, Ft Belvoir, Va 11th Engineer Combat Regiment, Port of Corozal, CZ Engineer Battalions 1st Bn, 78th Engineer Combat Regiment, Ft Dupont, Del 8th Engineer Combat Squadron, Ft McIntosh, Tex 29th Engineer Battalion (Topographic) (Army), Portland, Ore 30th Engineer Battalion (Topographic) (Army), Portland, Ore FIELD ARTILLERY UNITS Field Artillery Brigades 1st Field Artillery Brigade, Ft Hoyle, Md 2nd Field Artillery Brigade, Ft Sam Houston, Tex 3nd Field Artillery Brigade, Ft Lewis, Wash 4th Field Artillery Brigade, Ft Sill, Okla 6th Field Artillery Brigade, Ft Sheridan, Ill 11th Field Artillery Brigade, Schofield Barracks, Hawaii 13th Field Artillery Brigade, Ft Bragg, NC Field Artillery Regiments 1st FA Regt (75mm Gun) (Trk Drawn), Ft Sill, Okla 5th FA Regt (155mm How) (Trk Drawn), Madison Barracks, NY 6th FA Regt (75mm Gun) (Horse-D), Ft Hoyle, Md 7th FA Regt (75mm Gun) (Trk Drawn), Ft Ethan Allen, Vt 8th FA Regt (75mm Gun) (Trk Drawn), Hawaii 10th FA Regt (75mm Gun) (Trk Drawn), Ft Lewis, Wash 11th FA Regt (155mm How) (Trk Drawn), Schofield Barracks, Hawaii 12th FA Regt (155mm How) (Trk Drawn), Ft Sam Houston, Tex 13th FA Regt (75mm Gun) (Trk Drawn), Schofield Barracks, Hawaii 15th FA Regt (75mm Gun) (Trk Drawn), Ft Sam Houston, Tex 17th FA Regt (155mm How) (Trk Drawn), Ft Bragg, NC 18th FA Regt (Composite School Troops), Ft Sill, Okla 23rd FA Regt (2.95-inch Gun) (Pack) (Philippine Scouts), Ft Stotsenberg, PI 24th FA Regt (75mm Gun) (Trk Drawn) (Philippine Scouts), Ft Stotsenberg, PI 76th FA Regt, Ft Francis E Warren, Wyo 77th FA Regt (155mm How) (Trk Drawn), Ft DA Russell, Tex 82nd FA Regt (75mm Gun) (Horse Drawn), Ft Bliss, Tex Field Artillery Battalions 1st Bn, 2nd FA Regt (75mm Gun) (Trk Drawn), Ft Clayton, CZ 2nd Bn, 3rd FA Regt (75mm Gun) (Horse-D), Ft Sheridan, Ill 1st Bn, 4th FA Regt (75mm How) (Pack), Ft Bragg, NC 2nd Bn, 9th FA Regt (75mm Gun) (Trk Drawn), Ft Lewis, Wash 2nd Bn, 25th FA Regt (75mm Gun) (Trk Drawn), Henry Barracks, PR 1st FA Observation Bn, Ft Bragg, NC INFANTRY UNITS Infantry Divisions Hawaiian Div, Schofield Barracks, Hawaii Philippine Div, Ft Wm McKinley, PI 1st Division, Ft Hamilton, NY 2nd Division, Ft Sam Houston, Tex 3rd Division, Ft Lewis, Wash

3 Infantry Brigades 1st Inf Bde, Ft Wadsworth, NY 2nd Inf Bde, Ft Ontario, NY 3nd Inf Bde, Ft Sam Houston, Tex 4th Inf Bde, Ft Francis E Warren, Wyo 5th Inf Bde, Vancouver Barracks, Wash 6th Inf Bde, Ft Douglas, Ariz 8th Inf Bde, Ft McPherson, Ga 10th Inf Bde, Ft Benjamin Harrison, Ind 12th Inf Bde, Ft Sheridan, Ill 14th Inf Bde, Ft Snelling, Minn 16th Inf Bde, Ft George G Meade, Md 18th Inf Bde, Boston, Mass 21st Inf Bde, Schofield Barracks, Hawaii 22nd Inf Bde, Schofield Barracks, Hawaii 23nd Inf Bde, Ft William McKinley, PI Infantry Regiments 1st Inf Regt, Ft Jackson, SC 2nd Inf Regt, Ft Wayne, Mich 3nd Inf Regt, Ft Jackson, SC 4th Inf Regt, Ft George Wright, Wash 5th Inf Regt, Ft Williams, Maine 6th Inf Regt, Cp Josepth T Robinson, Ark 7th Inf Regt, Vancouver Barracks, Wash 8th Inf Regt, Ft Moultrie, SC 9th Inf Regt, Ft Sam Houston, Tex 10th Inf Regt, Ft Thomas, Ky 11th Inf Regt, Ft McClellan, Ala 12th Inf Regt, Ft Howard, Md 13th Inf Regt, Ft Devens, Mass 14th Inf Regt, Ft William D Davis, CZ 15th Inf Regt, Ft Lewis, Wash 16th Inf Regt, Ft Jay, NY 17th Inf Regt, Ft Crook, Neb 18th Inf Regt, Ft Benning, Ga 19th Inf Regt, Schofield Barracks, Hawaii 20th Inf Regt, Ft Francis E Warren, Wyo 21st Inf Regt, Schofield Barracks, Hawaii 22nd Inf Regt, Ft McClellan, Ala 23nd Inf Regt, Ft Sam Houston, Tex 24th Inf Regt (Colored), Ft Benning, Ga 25th Inf Regt (Colored), Ft Huachuca, Ariz 26th Inf Regt, Plattsburg Barracks, NY 27th Inf Regt, Schofield Barracks, Hawaii 28th Inf Regt, Ft Niagara, NY 29th Inf Regt, Ft Benning, Ga 30th Inf Regt, Presidio of San Francisco, Calif 31st Inf Regt, Manila, PI 33nd Inf Regt, Ft Clayton, CZ 35th Inf Regt, Schofield Barracks, Hawaii 38th Inf Regt, Ft Douglas, Utah 45th Inf Regt (Philippine Scouts), Ft Wm McKinley, PI 57th Inf Regt (Philippine Scouts), Ft Wm McKinley, PI 65th Inf Regt (Puerto Rican), San Juan, PR

4 Chemical Mortar Battaions 1st Chemical Mortar Bn, Co A, Hawaii 2nd Chemical Mortar Bn, Edgewood Arsenal, Md

UNITS SORTED BY STATION ALABAMA Fort McClellan, Anniston 11th Infantry Regiment 22nd Infantry Regiment ARIZONA Fort Douglas, Douglas 6th Infantry Brigade Fort Huachuca, Tombstone 25th Infantry Regiment (Colored) ARKANSAS Camp Joseph T Robinson, Conway 6th Infantry Regiment CALIFORNIA Fort MacArthur, San Pedro Harbor Defenses of Los Angeles 3rd Coast Artillery Regiment (Harbor Defense) (Type A) 63rd Coast Artillery Regiment (Antiaircraft) (Semimobile) Fort Rosecrans, San Diego Harbor Defenses of San Diego Fort Winfield Scott, San Francisco Harbor Defenses of San Francisco 6th Coast Artillery Regiment (Harbor Defense) (Type C) 65th Coast Artillery Regiment (Antiaircraft) (Semimobile) Presidio of Monterey, Monterey 11th Cavalry Regiment (Horse) Presidio of San Francisco, San Francisco HQ, Fourth Army 30th Infantry Regiment DELAWARE Fort Dupont, Delaware City 1st Battalion, 78th Engineer Combat Regiment Fort Miles, Lewes Harbor Defenses of Delaware FLORIDA Fort Barrancas, Pensacola Harbor Defenses of Pensacola 13th Coast Artillery Regiment (Harbor Defense) (Type A) Fort Taylor, Key West Harbor Defenses of Key West GEORGIA Fort Benning, Columbus Provisional Tank Brigade 18th Infantry Regiment 24th Infantry Regiment (Colored) 29th Infantry Regiment Fort McPherson, Atlanta 8th Infantry Brigade Fort Oglethope, Savannah 6th Cavalry Regiment (Horse-Mechanized)

5 ILLINOIS Chicago HQ Second Army Fort Sheridan, Highwood 6th Field Artillery Brigade 12th Infantry Brigade 61st Coast Artillery Regiment (Antiaircraft) (Semimobile) 2nd Battalion, 3rd Field Artillery Regiment (75mm Gun) (Horse Drawn) INDIANA Fort Benjamin Harrison, Indianapolis 10th Infantry Brigade IOWA Fort Des Moines, Des Moines 14th Cavalry Regiment (Horse) KANSAS Fort Leavenworth, Leavenworth 10th Cavalry Regiment (Horse) (Colored) Fort Riley, Junction City 2nd Cavalry Regiment (Horse) 9th Cavalry Regiment (Horse) (Colored) KENTUCKY Fort Knox, Louisville 1st Cavalry Regiment (Mechanized) 13th Cavalry Regiment (Mechanized) Fort Thomas, Newport 10th Infantry Regiment, Fort Thomas, Ky MAINE Fort Preble, South Portland 8th Coast Artillery Regiment (Harbor Defense) (Type B) Fort Williams, Cape Elizabeth Harbor Defenses of Portland 5th Infantry Regiment MARYLAND Edgewood Arsenal, Edgewood 2nd Chemical Mortar Battalion Fort George G Meade, Baltimore 16th Infantry Brigade Fort Howard, North Point 12th Infantry Regiment Fort Hoyle, Baltimore 1st Field Artillery Brigade 6th Field Artillery Regiment (75mm Gun) (Horse Drawn) MASSACHUSETTS Boston 18th Infantry Brigade Fort Banks, Winthrop Harbor Defenses of Boston 9th Coast Artillery Regiment (Harbor Defense) (Type A) Fort Devens, Ayr 13th Infantry Regiment Fort Rodman, New Bedford Harbor Defenses of New Bedford

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MICHIGAN Fort Wayne, Detroit 2nd Infantry Regiment MINNESOTA Fort Snelling, St. Paul 14th Infantry Brigade NEBRASKA Fort Crook, Omaha 17th Infantry Regiment NEW HAMPSHIRE Camp Langdon, New Castle Harbor Defenses of Portsmouth NEW JERSEY Fort Hancock, Sandy Hook Harbor Defenses of Sandy Hook 7th Coast Artillery Regiment (Harbor Defense) (Type B) 52nd Coast Artillery Regiment (Railway 8-inch Gun) NEW YORK Black Lake 7th Cavalry Brigade (Mechanized) Fort H.G. Wright, Fishers Island Harbor Defenses of Long Island Sound 11th Coast Artillery Regiment (Harbor Defense) (Type B) , NY City HQ 1st Division Harbor Defenses of Southern NY 5th Coast Artillery Regiment (Harbor Defense) (Type A) Fort Jay, Governor's Island, New York City HQ First Army 16th Infantry Regiment Fort Niagara, Youngstown 28th Infantry Regiment Fort Ontario, Oswego 2nd Infantry Brigade Fort Totten, NY City Defenses of Eastern NY 62nd Coast Artillery Regiment (Antiaircraft) (Mobile) Fort Wadsworth, Staten Island 1st Infantry Brigade Madison Barracks, Sacket Harbor 5th Field Artillery Regiment (155mm Howitzer) (Truck Drawn) Plattsburg Barracks, Plattsburg 26th Infantry Regiment NORTH CAROLINA Fort Bragg, Fayetteville 13th Field Artillery Brigade 17th Field Artillery Regiment (155mm Howitzer) (Truck Drawn) 1st Battalion, 4th Field Artillery Regiment (75mm Howitzer) (Pack) 1st Field Artillery Observation Battalion Wilmington Harbor Defenses of Wilmington OKLAHOMA: Fort Sill, Lawton Fort Sill, Lawton 4th Field Artillery Brigade 1st Field Artillery Regiment (75mm Gun) (Truck Drawn) 18th Field Artillery Regiment (Companymposite School Troops)

7 OREGON Fort Stevens, Warrenton Harbor Defenses of Columbia River Portland 29th Engineer Battalion (Topographic) (Army) 30th Engineer Battalion (Topographic) (Army) RHODE ISLAND Fort Adams, Newport Harbor Defenses of Narragansett Bay SOUTH CAROLINA Fort Jackson, Columbia 1st Infantry Regiment 3rd Infantry Regiment Fort Moultrie, Moultrieville Harbor Defenses of Charleston 8th Infantry Regiment SOUTH DAKOTA Fort Meade, Sturgis 4th Cavalry Regiment (Horse-Mechanized) Fort Bliss, El Paso HQ 1st Cavalry Division 2nd Cavalry Brigade 7th Cavalry Regiment (Horse) 8th Cavalry Regiment (Horse) 82nd Field Artillery Regiment (75mm Gun) (Horse Drawn) Fort Brown, Brownsville 12th Cavalry Regiment (Horse) Fort Clark, Brackettville 1st Cavalry Brigade 5th Cavalry Regiment (Horse) Fort Crockett, Galveston Harbor Defenses of Galveston 69th Coast Artillery Regiment (Antiaircraft) (Semimobile) Fort D.A. Russell, Marfa 77th Field Artillery Regiment (155mm Howitzer) (Truck Drawn) Fort McIntosh, Laredo 8th Engineer Combat Sqdn Fort Sam Houston, San Antonio HQ Third Army HQ 2nd Division 2nd Field Artillery Brigade 3rd Infantry Brigade 9th Infantry Regiment 12th Field Artillery Regiment (155mm Howitzer) (Truck Drawn) 15th Field Artillery Regiment (75mm Gun) (Truck Drawn) 23rd Infantry Regiment UTAH Fort Douglas, Salt Lake City 38th Infantry Regiment VERMONT Fort Ethan Allen, Essex Junction 7th Field Artillery Regiment (75mm Gun) (Truck Drawn)

8 VIRGINIA Fort Belvoir, Alexandria 5th Engineer Combat Regiment Fort Monroe, Suffolk Harbor Defenses of Chesapeake Bay 2nd Coast Artillery Regiment (Harbor Defense) (Type A) Fort Myer, Arlington Washington Provisional Brigade 3rd Cavalry Regiment (Horse-Mechanized) WASHINGTON Fort George Wright, Spokane 4th Infantry Regiment , Tacoma HQ 3rd Division 3rd Field Artillery Brigade 10th Field Artillery Regiment (75mm Gun) (Truck Drawn) 15th Infantry Regiment 2nd Battalion, 9th Field Artillery Regiment (75mm Gun) (Truck Drawn) Fort Worden, Port Townsend Harbor Defenses of Puget Sound 14th Coast Artillery Regiment (Harbor Defense) (Type A) Vancouver Barracks, Vancouver 5th Infantry Brigade 7th Infantry Regiment WYOMING Fort Francis E Warren, Cheyenne 4th Infantry Brigade 20th Infantry Regiment 76th Field Artillery Regiment PANAMA CANAL ZONE Fort Armador 4th Coast Artillery Regiment (Harbor Defense) (Type C) Fort Clayton 33rd Infantry Regiment 1st Battalion, 2nd Field Artillery Regiment (75mm Gun) (Truck Drawn) Fort Sherman 1st Coast Artillery Regiment (Harbor Defense) (Type C) Fort William D Davis 14th Infantry Regiment Port of Corozal 11th Engineer Combat Regiment Unknown Harbor Defenses of Balboa Harbor Defenses of Cristobal PHILIPPINE ISLANDS Fort Mills, Corregidor Island Harbor Defenses of Manila & Subic Bays 59th Coast Artillery Regiment (Harbor Defense) 60th Coast Artillery Regiment (Antiaircraft) (Semimobile) 91st Coast Artillery Regiment (Harbor Defense) (Philippine Scouts) 92nd Coast Artillery Regiment (Harbor Defense) (Philippine Scouts) Fort Stotsenberg, Pampangs 23rd Field Artillery Regiment (2.95-inch Gun) (Pack) (Philippine Scouts) 24th Field Artillery Regiment (75mm Gun) (Truck Drawn) (Philippine Scouts)

9 Fort William McKinley, Rizal HQ Philippine Division 23rd Infantry Brigade 45th Infantry Regiment (Philippine Scouts) 57th Infantry Regiment (Philippine Scouts) Manila 31st Infantry Regiment Unknown 26th Cavalry Regiment (Horse) (Philippine Scouts) PUERTO RICO Fort Brooke Harbor Defenses of San Juan Henry Barracks 2nd Battalion, 25th Field Artillery Regiment (75mm Gun) (Truck Drawn) San Juan 65th Infantry Regiment (Puerto Rican) Fort DeRussy Hawaiian Separate Coast Artillery Brigade Fort Kamehameha 15th Coast Artillery Regiment (Harbor Defense) (Type A) Fort Shafter Harbor Defenses of Honolulu Schofield Barracks HQ Hawaiian Division 11th Field Artillery Brigade 21st Infantry Brigade 22nd Infantry Brigade 11th Field Artillery Regiment (155mm Howitzer) (Truck Drawn) 13th Field Artillery Regiment (75mm Gun) (Truck Drawn) 19th Infantry Regiment 21st Infantry Regiment 27th Infantry Regiment 35th Infantry Regiment Unknown 8th Field Artillery Regiment (75mm Gun) (Truck Drawn) 16th Coast Artillery Regiment (Harbor Defense) (Type A) 64th Coast Artillery Regiment (Antiaircraft) (Semimobile) Company A, 1st Chemical Mortar Battalion

(C) G.F.Nafziger 1996

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