Back to Strengths of the Combatants.
This post lists the U.S. Army combat units that were active on 1 Sep 39.
This post is divided into eight sections, i.e.:
I. Armies
II. Armored Units
III. Cavalry Units
IV. Coast Artillery and Antiaircraft Artillery Units
VII. Infantry Units
VIII. Units sorted by Station
ABBREVIATIONS
-------------
AA - Antiaircraft
Bde - Brigade
Bn - Battalion
CA - Coast Artillery
Cav - Cavalry
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
TH - Territory of Hawaii
Trk - Truck
PART I. ARMIES
--------------
First Army, Ft Jay, NY
Second Army, Chicago Ill
Third Army, Ft Sam Houston, Tex
Fourth Army, Presidio of San Francisco, Calif
PART II. ARMORED UNITS
----------------------
Armored Brigade
---------------
Provisional Tank Brigade, Ft Benning, Ga
PART III. CAVALRY UNITS
-----------------------
Cavalry Divisions
-----------------
1st Cav Div, Ft Bliss, Tex
Cavalry Brigades
----------------
Washington Provisional Bde, Ft Myer, Va
1st Cav Bde, Ft Clark, Tex
2d Cav Bde, Ft Bliss, Tex
7th Cav Bde (Mechanized), Black Lake, NY
Cavalry Regiments
-----------------
1st Cav Regt (Mechanized), Ft Knox, Ky
2d Cav Regt (Horse), Ft Riley, Kans
3d Cav Regt (Horse-Mechanized), Ft Myer, Va
4th Cav Regt (Horse-Mechanized), Ft Meade, SD
5th Cav Regt (Horse), Ft Clark, Tex
6th Cav Regt (Horse-Mechanized), Ft Oglethorpe, Ga
7th Cav Regt (Horse), Ft Bliss, Tex
8th Cav Regt (Horse), Ft Bliss, Tex
9th Cav Regt (Horse) (Colored), Ft Riley, Kans
10th Cav Regt (Horse) (Colored), Ft Leavenworth, Kans
11th Cav Regt (Horse), Presidio of Monterey, Calif
12th Cav Regt (Horse), Ft Brown, Tex
13th Cav Regt (Mechanized), Ft Knox, Ky
14th Cav Regt (Horse), Ft Des Moines, Iowa
26th Cav Regt (Horse) (Philippine Scouts), PI
PART IV. COAST ARTILLERY AND ANTIAIRCRAFT ARTILLERY UNITS
----------------------------------------------------------
Coast Artillery Brigades
------------------------
Hawaiian Separate CA Bde, Ft DeRussy, TH
Coast Artillery Regiments
-------------------------
1st CA Regt (Harbor defence) (Type C), Ft Sherman, CZ
2d CA Regt (Harbor defence) (Type A), Ft Monroe, Va
3d CA Regt (Harbor defence) (Type A), Ft MacArthur, Calif
4th CA Regt (Harbor defence) (Type C), Ft Armador, CZ
5th CA Regt (Harbor defence) (Type A), Ft Hamilton, NY
6th CA Regt (Harbor defence) (Type C), Ft Winfield Scott, Calif
7th CA Regt (Harbor defence) (Type B), Ft Hancock, NJ
8th CA Regt (Harbor defence) (Type B), Ft Preble, Maine
9th CA Regt (Harbor defence) (Type A), Ft Banks, Mass
11th CA Regt (Harbor defence) (Type B), Ft HG Wright, NY
13th CA Regt (Harbor defence) (Type A), Ft Barrancas, Fla
14th CA Regt (Harbor defence) (Type A), Ft Worden, Wash
15th CA Regt (Harbor defence) (Type A), Ft Kamehameha, TH
16th CA Regt (Harbor defence) (Type A), TH
52d CA Regt (Railway 8-inch Gun), Ft Hancock, NJ
59th CA Regt (Harbor defence), Ft Mills, PI
60th CA Regt (AA) (Semimobile), Ft Mills, PI
61st CA Regt (AA) (Semimobile), Ft Sheridan, Ill
62d CA Regt (AA) (Mobile), Ft Totten, NY
63d CA Regt (AA) (Semimobile), Ft MacArthur, Calif
64th CA Regt (AA) (Semimobile), TH
65th CA Regt (AA) (Semimobile), Ft Winfield Scott, Calif
69th CA Regt (AA) (Semimobile), Ft Crockett, Tex
91st CA Regt (Harbor defence) (Philippine Scouts), Ft Mills, PI
92d CA Regt (Harbor defence) (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 Honolulu, Ft Shafter, TH
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 and 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
PART V. ENGINEER UNITS
----------------------
Engineer Regiments
------------------
5th Engr Combat Regt, Ft Belvoir, Va
11th Engr Combat Regt, Port of Corozal, CZ
Engineer Battalions
-------------------
1st Bn, 78th Engr Combat Regt, Ft Dupont, Del
8th Engr Combat Sqdn, Ft McIntosh, Tex
29th Engr Bn (Topographic) (Army), Portland, Ore
30th Engr Bn (Topographic) (Army), Portland, Ore
PART VI. FIELD ARTILLERY UNITS
------------------------------
Field Artillery Brigades
------------------------
1st FA Bde, Ft Hoyle, Md
2d FA Bde, Ft Sam Houston, Tex
3d FA Bde, Ft Lewis, Wash
4th FA Bde, Ft Sill, Okla
6th FA Bde, Ft Sheridan, Ill
11th FA Bde, Schofield Barracks, TH
13th FA Bde, 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, TH
12th FA Regt (155mm How) (Trk Drawn), Ft Sam Houston, Tex
13th FA Regt (75mm Gun) (Trk Drawn), Schofield Barracks, TH
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
23d 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
82d FA Regt (75mm Gun) (Horse Drawn), Ft Bliss, Tex
Field Artillery Battalions
--------------------------
1st Bn, 2d FA Regt (75mm Gun) (Trk Drawn), Ft Clayton, CZ
2d Bn, 3d FA Regt (75mm Gun) (Horse-D), Ft Sheridan, Ill
1st Bn, 4th FA Regt (75mm How) (Pack), Ft Bragg, NC
2d Bn, 9th FA Regt (75mm Gun) (Trk Drawn), Ft Lewis, Wash
2d Bn, 25th FA Regt (75mm Gun) (Trk Drawn), Henry Barracks, PR
1st FA Observation Bn, Ft Bragg, NC
PART VII. INFANTRY UNITS
------------------------
Infantry Divisions
------------------
Hawaiian Div, Schofield Barracks, TH
Philippine Div, Ft Wm McKinley, PI
1st Div, Ft Hamilton, NY
2d Div, Ft Sam Houston, Tex
3d Div, Ft Lewis, Wash
Infantry Brigades
-----------------
1st Inf Bde, Ft Wadsworth, NY
2d Inf Bde, Ft Ontario, NY
3d 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, TH
22d Inf Bde, Schofield Barracks, TH
23d Inf Bde, Ft William McKinley, PI
Infantry Regiments
------------------
1st Inf Regt, Ft Jackson, SC
2d Inf Regt, Ft Wayne, Mich
3d 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, TH
20th Inf Regt, Ft Francis E Warren, Wyo
21st Inf Regt, Schofield Barracks, TH
22d Inf Regt, Ft McClellan, Ala
23d 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, TH
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
33d Inf Regt, Ft Clayton, CZ
35th Inf Regt, Schofield Barracks, TH
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
Chemical Mortar Battaions
-------------------------
1st Chemical Mortar Bn, Co A, TH
2d Chemical Mortar Bn, Edgewood Arsenal, Md
PART VIII. UNITS SORTED BY STATION
----------------------------------
ALABAMA
-------
Fort McClellan, Anniston
11th Infantry Regiment
22d 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
3d Coast Artillery Regiment (Harbor defence) (Type A)
63d 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 defence) (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 defence) (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)
ILLINOIS
--------
Chicago
HQ Second Army
Fort Sheridan, Highwood
6th Field Artillery Brigade
12th Infantry Brigade
61st Coast Artillery Regiment (Antiaircraft) (Semimobile)
2d Battalion, 3d 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
2d 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 defence) (Type B)
Fort Williams, Cape Elizabeth
Harbor Defenses of Portland
5th Infantry Regiment
MARYLAND
--------
Edgewood Arsenal, Edgewood
2d 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 defence) (Type A)
Fort Devens, Ayr
13th Infantry Regiment
Fort Rodman, New Bedford
Harbor Defenses of New Bedford
MICHIGAN
--------
Fort Wayne, Detroit
2d 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 defence) (Type B)
52d 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 defence) (Type B)
Fort Hamilton, NY City
HQ 1st Division
Harbor Defenses of Southern NY
5th Coast Artillery Regiment (Harbor defence) (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
2d Infantry Brigade
Fort Totten, NY City
Harbor Defenses of Eastern NY
62d 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)
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
3d Infantry Regiment
Fort Moultrie, Moultrieville
Harbor Defenses of Charleston
8th Infantry Regiment
SOUTH DAKOTA
------------
Fort Meade, Sturgis
4th Cavalry Regiment (Horse-Mechanized)
TEXAS
-----
Fort Bliss, El Paso
HQ 1st Cavalry Division
2d Cavalry Brigade
7th Cavalry Regiment (Horse)
8th Cavalry Regiment (Horse)
82d 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 2d Division
2d Field Artillery Brigade
3d Infantry Brigade
9th Infantry Regiment
12th Field Artillery Regiment (155mm Howitzer) (Truck Drawn)
15th Field Artillery Regiment (75mm Gun) (Truck Drawn)
23d 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)
VIRGINIA
--------
Fort Belvoir, Alexandria
5th Engineer Combat Regiment
Fort Monroe, Suffolk
Harbor Defenses of Chesapeake Bay
2d Coast Artillery Regiment (Harbor defence) (Type A)
Fort Myer, Arlington
Washington Provisional Brigade
3d Cavalry Regiment (Horse-Mechanized)
WASHINGTON
----------
Fort George Wright, Spokane
4th Infantry Regiment
Fort Lewis, Tacoma
HQ 3d Division
3d Field Artillery Brigade
10th Field Artillery Regiment (75mm Gun) (Truck Drawn)
15th Infantry Regiment
2d Battalion, 9th Field Artillery Regiment (75mm Gun) (Truck Drawn)
Fort Worden, Port Townsend
Harbor Defenses of Puget Sound
14th Coast Artillery Regiment (Harbor defence) (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
OVERSEAS
^^^^^^^^
CANAL ZONE
----------
Fort Armador
4th Coast Artillery Regiment (Harbor defence) (Type C)
Fort Clayton
33d Infantry Regiment
1st Battalion, 2d Field Artillery Regiment (75mm Gun) (Truck Drawn)
Fort Sherman
1st Coast Artillery Regiment (Harbor defence) (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 and Subic Bays
59th Coast Artillery Regiment (Harbor defence)
60th Coast Artillery Regiment (Antiaircraft) (Semimobile)
91st Coast Artillery Regiment (Harbor defence) (Philippine Scouts)
92d Coast Artillery Regiment (Harbor defence) (Philippine Scouts)
Fort Stotsenberg, Pampangs
23d Field Artillery Regiment (2.95-inch Gun) (Pack) (Philippine Scouts)
24th Field Artillery Regiment (75mm Gun) (Truck Drawn) (Philippine Scouts)
Fort William McKinley, Rizal
HQ Philippine Division
23d 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
2d Battalion, 25th Field Artillery Regiment (75mm Gun) (Truck Drawn)
San Juan
65th Infantry Regiment (Puerto Rican)
TERRITORY OF HAWAII
-------------------
Fort DeRussy
Hawaiian Separate Coast Artillery Brigade
Fort Kamehameha
15th Coast Artillery Regiment (Harbor defence) (Type A)
Fort Shafter
Harbor Defenses of Honolulu
Schofield Barracks
HQ Hawaiian Division
11th Field Artillery Brigade
21st Infantry Brigade
22d 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 defence) (Type A)
64th Coast Artillery Regiment (Antiaircraft) (Semimobile)
Company A, 1st Chemical Mortar Battalion
Back to Strengths of the Combatants.