United States Army Structure (December 1941)

This list WILL NOT include the United States Army Air Corps, Reserve Officer Training Corps or Corps Area Service Commands. Also, there is no Philippine Army units shown.

First Army (Northeastern Defence Command)
Theoretically the First Army didn't exist until after mobilisation. The army was known as the Northeastern Defence Command even though it commanded units based all over the East Coast. The army controlled the following states: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Delaware, Pennsylvania, Maryland and part of Washington D.C..
 * Headquarters and Special Troops Battalion at Fort Jay under Lieutenant General Hugh Drum
 * 1st Coast Artillery District
 * District Headquarters at Fort Warren under Major General Thomas Terry
 * Harbour Defences of Boston
 * Harbour Defences of Long Island Sound
 * Harbour Defences of Narragansett Bay
 * Harbour Defences of New Bedford
 * Harbour Defences of Portland
 * Harbour Defences of Portsmouth
 * 2nd Coast Artillery District
 * District Headquarters at Fort Hamilton under Brigadier General Arthur Campbell
 * Harbour Defences of the Delaware River
 * Harbour Defences of Eastern New York
 * Harbour Defences of Sandy Hook
 * Harbour Defences of Southern New York
 * 3rd Coast Artillery District
 * District Headquarters at Fort Monroe under Brigadier General Rollin Tilton
 * Harbour Defences of the Chesapeak Bay
 * 64th Signal Battalion at Fort George G. Meade
 * 121st Radio Intelligence Company at Fort George G. Meade
 * 175th Repair Signal Company (with detachment in Iceland) at Fort George G. Meade
 * 226th Operations Signal Company at Fort George G. Meade
 * 227th Operations Signal Company at Fort George G. Meade
 * 251st Construction Signals Company at Fort Dix
 * 201st Signal Depot (with detachment in Iceland) at Fort Dix
 * 366th Seperate Coloured Infantry Regiment at Fort Devins
 * 372nd Seperate Coloured Infantry Regiment at Fort Dix
 * 3rd Field Artillery Observation Battalion at Fort Bragg
 * 7th Field Artillery Observation Battalion at Fort Bragg
 * 47th Field Artillery Regiment at Fort Bragg
 * 72nd Field Artillery Regiment at Fort Bragg
 * 79th Heavy Field Artillery Regiment at Fort Bragg
 * 112th Field Artillery Regiment at Fort Bragg
 * 128th Field Artillery Regiment at Camp Blanding (transferring from Fort Bragg)
 * 4th Field Artillery Battalion at Fort Bragg
 * 6th Field Artillery Battalion at Fort Bragg
 * 97th Field Artillery Battalion at Fort Bragg
 * 99th Field Artillery Battalion at Edgewood Arsenal
 * 105th Tank Destroyer Battalion at Fort George G. Meade
 * 54th Mobile Coast Artillery Regiment (Coloured) at Camp Davies
 * 101st Military Police Battalion at Fort Dix
 * 518th Military Police Battalion at Fort Jay
 * 2nd Seperate Chemical Battalion at Edgewood Arsenal
 * 1st Decontamination Chemical Company (Coloured) at Edgewood Arsenal
 * 2nd Decontamination Chemical Company moving to Edgewood Arsenal from Fort Bragg
 * 1st Impregnating Chemical Company at Edgewood Arsenal
 * 1st Labratory Chemical Company at Edgewood Arsenal
 * 3rd Laboratory Chemical Company moving to Philipines from Edgewood Arsenal
 * 10th Maintenance Chemical Company at Edgewood Arsenal
 * 412th Checmical Depot at Edgewood Arsenal

I Corps
The 1st Corps or I Corps was one of the major "corps" sized units of the US Army. The corps was responsible for commanding the 8th, 9th, and 30th (National Guard) Divisions. The corps was also responsible for controlling the units based in the South-East.
 * Headquarters at Fort Jackson under Major General Charles Fullington Thompson
 * 1st Corps Special Troops Company
 * 56th Signal Battalion
 * 102nd Cavalry Regiment (Horse and Mechanized)
 * 8th Infantry Division, Fort Jackson
 * 38th Combat Engineer Battalion
 * 66th Topographic Engineer Company
 * 1st Maintenance Ordnance Battalion BHQ at Camp Blanding
 * E and F Transportation Companies, 28th Quartermasters Regiment (Coloured)
 * 52nd Medical Battalion

9th Infantry Division

 * Headquarters at Fort Bragg under Major General Rene Edward De Russy Hoyle
 * 9th Armoured Reconnaissance Squadron
 * 39th Infantry Regiment
 * 47th Infantry Regiment
 * 60th Infantry Regiment
 * 9th Divisional Artillery Brigade
 * 26th Field Artillery Battalion
 * 34th Field Artillery Battalion
 * 60th Field Artillery Battalion
 * 84th Field Artillery Battalion
 * 15th Combat Engineer Battalion
 * 9th Signal Company
 * 9th Quartermaster Battalion
 * 9th Field Hospital

30th "Old Hickory" Infantry Division

 * Divisional Headquarters at Fort Jackson, South Carolina under Major General Henry Dozier Russell (Georgia, Tennessee, North Carolina, and South Carolina National Guards)
 * Special Troops Battalion
 * Headquarters Company at Griffin
 * 30th Mobile Signal Company at Canton
 * 30th Light Tank Company at Forsyth
 * 105th Maintenance Ordnance Company at Nashville
 * 30th Military Police Company at Springfield
 * 59th Infantry Brigade
 * Headquarters at Columbia
 * 118th Infantry Regiment at Charleston
 * 121st Infantry Regiment at Macon
 * 60th Infantry Brigade
 * Headquarters at Graham
 * 117th Infantry Regiment at Knoxville
 * 120th Infantry Regiment at Raleigh
 * 55th Field Artillery Brigade
 * Headquarters at Savannah
 * 113th Field Artillery Regiment at Raleigh
 * 115th Field Artillery Regiment at Memphis
 * 118th Field Artillery Regiment
 * 105th Ammunition Train
 * 105th Engineer Regiment at Raleigh
 * 105th Medical Regiment at Hednerson
 * 105th Quartermasters Regiment at Charleston


 * 13th Field Artillery Brigade
 * Headquarters at Fort Bragg
 * 1st Observation Battalion
 * 17th Field Artillery Regiment
 * 36th Field Artillery Regiment
 * 178th Field Artillery Regiment

II Corps
The 2nd Corps or II Corps was one of the major "corps" sized units of the US Army. The corps was responsible for commanding the 28th (National Guard), 29th (National Guard), and 44th (National Guard) Divisions. The corps was also responsible for controlling the units based in the Mid-Atlantic.
 * Headquarters and Headquarters Company at Fort Dupont under Major General Lloyd Fredendall
 * II Corps Special Troops Company at Fort George G. Meade
 * 51st Signal Battalion at Fort Dix
 * 104th Cavalry Regiment (Horse and Mechanized) at Indiantown Gap Military Reservation
 * 62nd Topographic Engineer Company at Fort George G. Meade
 * L Company, 47th Quartermasters Regiment at Fort George G. Meade
 * 2nd Maintenance Ordnance Battalion at Wilmington
 * 51st Medical Battalion at Fort George G. Meade

28th "Keystone" Infantry Division

 * Divisional Headquarters at Indiantown Gap (Pennsylvania National Guard)
 * Special Troops Battalion
 * Headquarters Company at Philadelphia
 * 28th Signal Company
 * 28th Light Tank Company at Norristown
 * 103rd Medium Ordnance Company
 * 28th Military Police Company at York, Pennsylvania
 * 55th Infantry Brigade
 * Brigade Headquarters at Washington, Pennsylvania
 * 109th Infantry Regiment at Scranton
 * 110th Infantry Regiment
 * 56th Infantry Brigade
 * Brigade Headquarters at Columbia, Pennsylvania
 * 111th Infantry Regiment at Philadelphia
 * 112th Infantry Regiment at Kane
 * 53rd Field Artillery Brigade
 * Brigade Headquarters at Pittsburg
 * 107th Field Artillery Regiment
 * 108th Field Artillery Regiment at Philadelphia
 * 109th Field Artillery Regiment at Wilkes-Barre
 * 103rd Ammunition Train at Tamqua
 * 103rd Engineer Regiment at Philadelphia
 * 103rd Medical Regiment at Lancaster, Pennsylvania
 * 103rd Quartermaster Regiment

29th "Blue and Gray" Infantry Division

 * Divisional Headquarters at Washington DC
 * Divisional Special Troops Battalion
 * Headquarters Company
 * 29th Signal Company at Norfolk
 * 29th Light Tank Company at Danville
 * 104th Maintenance Ordnance Company
 * 29th Military Police Company
 * 58th Infantry Brigade
 * Brigade Headquarters at Baltimore
 * 1st Infantry Regiment at Frederick
 * 5th Infantry Regiment
 * 91st Infantry Brigade
 * Brigade Headquarters at Richmond
 * 1st Infantry Regiment
 * 116th Infantry Regiment at Lynchburg
 * 54th Field Artillery Brigade
 * Brigade Headquarters at Norfolk
 * 110th Field Artillery Regiment at Pikesville
 * 111th Field Artillery Regiment at Hampton
 * 176th Field Artillery Regiment at Pittsburgh
 * 104th Ammunition Train
 * 121st Engineer Regiment
 * 104th Quartermaster Regiment at Baltimore
 * 104th Medical Regiment at Baltimore

44th Infantry Division

 * Divisional Headquarters at Trenton (New Jersey, Delaware, and New York National Guards)
 * Special Troops Battalion
 * Battalion Headquarters at Orange
 * Headquarters Company at Plainfield
 * 44th Signal Company at Orange
 * 44th Light Tank Company at Orange
 * 119th Maintenance Ordnance Company at Trenton
 * 44th Military Police Company at Orange
 * 57th Infantry Brigade
 * Brigade Headquarters at Trenton
 * 113th Infantry Regiment at Newark
 * 114th Infantry Regiment at Camden
 * 87th Infantry Brigade
 * Brigade Headquarters at New York City
 * 71st Infantry Regiment
 * 174th Infantry Regiment at Buffalo, New York
 * 69th Field Artillery Brigade
 * Brigade Headquarters at Camden, New Jersey
 * 112th Field Artillery Regiment at Trenton
 * 156th Field Artillery Regiment at Newburgh
 * 157th Field Artillery Regiment
 * 119th Ammunition Train
 * 104th Engineer Regiment at Teaneck
 * 119th Quartermaster Regiment
 * 119th Medical Regiment

III Corps
The III Corps (3rd Corps) was the smalles of the First Army Corps. The corps controlled the units based in the north-eastern areas.
 * Corps Headquarters at Providence under Major General Karl Truesdell
 * VI Corps Special Troops Company at Fort Devens
 * 57th Signal Battalion at Camp Edwards
 * 101st Cavalry Regiment (Horse and Mechanized) at Fort Devens
 * 36th Combat Engineer Regiment at Plattsburg Barracks
 * B Company, 22nd Quartermaster Regiment at Camp Edwards
 * C Company, 22nd Quartermaster Regiment at Fort Devens
 * 6th Ordnance Maintenance Battalion
 * 54th Medical Battalion at Camp Edwards

1st "The Red One" Infantry Division

 * Divisional Headquarters at Fort Devens under Donald Cubbison
 * Divisional Special Troops
 * Headquarters at Fort Hamilton
 * Headquarters Company at Fort Wood
 * 1st Signal Company at Fort Monmouth
 * 1st Light Tank Company at Miller Field
 * 1st Maintenance Ordnance Company at Madison Barracks
 * 1st Military Police Company at Fort Wood
 * 1st Infantry Brigade
 * Brigade Headquarters at Fort Wadsworth
 * 16th Infantry Regiment at Fort Jay
 * 18th Infantry Regiment at Fort Hamilton
 * 2nd Infantry Brigade
 * Brigade Headquarters at Fort Ontario
 * 26th Infantry Regiment at Plattsburg Barracks
 * 28th Infantry Regiment at Fort Niagara
 * 1st Field Artillery Brigade
 * Brigade Headquarters at Fort Hoyle
 * 5th Field Artillery Regiment at Madison Barracks
 * 6th Field Artillery Regiment at Fort Hoyle
 * 7th Field Artillery Regiment at Fort Ethan Allen
 * 1st Ammunition Train
 * 1st Engineer Regiment at Fort Du Pont
 * 1st Quartermaster Regiment at Fort Hamilton
 * 1st Medical Regiment at Carlisle Barracks

26th "Yankee" Infantry Division

 * Divisional Headquarters at Camp Edwards under Major General Roger Eckfeldt (Massachusetts National Guard)
 * Special Troops Battalion
 * Headquarters at Allston
 * Headquarters Company at Boston
 * 26th Signal Company at Allston
 * 26th Light Tank Company at Boston
 * 101st Ordnance Maintenance Company at Natick
 * 26th Military Police Company
 * 51st Infantry Brigade
 * Brigade Headquarters at Quincy
 * 101st Infantry Regiment at Boston
 * 182nd Infantry Regiment at Charlestown
 * 52nd Infantry Brigade
 * Brigade Headquarters at Worcester
 * 104th Infantry Regiment at Springfield
 * 181st Infantry Regiment
 * 51st Field Artillery Brigade
 * Brigade Headquarters at Allston
 * 101st Field Artillery Regiment
 * 102nd Field Artillery Regiment at Salem
 * 172nd Field Artillery Regiment at Manchester
 * 101st Ammunition Train
 * 101st Engineer Regiment at Cambridge
 * 101st Quartermaster Regiment at West Newton
 * 101st Medical Regiment at Boston

Antiaicraft Assets

 * 34th Coast Antiaicraft Artillery Brigade
 * Brigade Headquarters at Fort Bragg
 * 67th Coast Artillery Regiment (Coloured)
 * 76th Coast Artillery Regiment (Coloured)
 * 77th Coast Artillery Regiment (Coloured)
 * 36th Coast Antiaicraft Artillery Brigade
 * Brigade Headquarters at Camp Edwards
 * 68th Coast Artillery Regiment
 * 208th Coast Artillery Regiment
 * 369th Coast Artillery Regiment (Coloured)
 * 38th Coast Antiaicraft Artillery Brigade
 * Brigade Headquarters at Camp Stewart
 * 70th Coast Artillery Regiment
 * 213th Coast Artillery Regiment
 * 214th Coast Artillery Regiment
 * 102nd Coast Artillery Brigade
 * Brigade Headquarters at Camp Stewart
 * 207th Coast Artillery Regiment
 * 2019th Coast Artillery Regiment
 * 93rd Coast Artillery Regiment at Camp Davis
 * 94th Coast Artillery Regiment at Camp Davis
 * 95th Coast Artillery Regiment at Camp Davis
 * 96th Coast Artillery Regiment at Camp Davis
 * 99th Coast Artillery Regiment (Coloured) at Camp Davis
 * 100th Coast Artillery Regiment (Coloured) at Camp Davis
 * 198th Coast Artillery Regiment at Camp Edwards
 * 101st Coast Artillery Battalion at Camp Stewart
 * 102nd Coast Artillery Battalion at Camp Stewart
 * 104th Coast Artillery Battalion at Camp Stewart
 * 107th Coast Artillery Battalion at Camp Stewart

Engineer Assets

 * 41st General Service Engineer Regiment (Coloured) at Fort Jackson
 * 44th General Service Engineer Regiment at Fort Belvoir
 * 85th Heavy Pontoon Engineer Battalion at Fort Belvoir
 * 84th Camoflage Engineer Battalion at Fort Belvoir
 * 95th Seperate Engineer Battalion (Coloured) at Fort Belvoir
 * 96th Seperate Engineer Battalion (Coloured) at Fort Bragg
 * 84th Seperate Engineer Battalion (Coloured) at Fort Belvoir
 * 95th Seperate Engineer Battalion (Coloured) at Fort Belvoir
 * 96th Seperate Engineer Battalion (Coloured) at Fort Bragg
 * 70th Pontoon Engineer Company at Fort Dupont
 * 72nd Pontoon Engineer Company at Fort Belvoir

Quartermaster Assets

 * A Company, 22nd Quartermaster Regiment (Coloured) at Camp Edwards
 * 2nd Battalion, 22nd Quartermaster Regiment (Coloured) at Fort Dix
 * B Company, 23rd Quartermaster Regiment at Boston Army Base
 * 2nd Battalion, 28th Quartermaster Regiment (Coloured) at Fort Jackson
 * H Company, 28th Quartermaster Regiment (Coloured) at Camp Stewart
 * K Company, 47th Quartermaster Regiment (Coloured) at Holabird Quartermasters Depot
 * 2nd Battalion, 48th Quartermaster Regiment (Coloured) at Fort Bragg
 * G Company, 48th Quartermaster Regiment (Coloured) at Camp Croft
 * 1st Battalion, 53rd Quartermaster Regiment (Heavy Maintenance) at Holabird Quartermasters Depot
 * D Company, 53rd Quartermaster Regiment (Heavy Maintenance) at Camp Stewart
 * 3rd Battalion, 53rd Quartermaster Regiment (Heavy Maintenance) at Fort Bragg
 * 1st Battalion, 54th Quartermaster Regiment (Heavy Maintenance) at Fort Devens
 * B Company, 54th Quartermaster Regiment (Heavy Maintenance) at Boston Army Base
 * D Company, 54th Quartermaster Regiment (Heavy Maintenance) at Camp Edwards
 * 2nd Battalion, 54th Quartermaster Regiment (Heavy Maintenance) at Fort Dix
 * G Company, 54th Quartermaster Regiment (Heavy Maintenance) at Miller Field
 * L Company, 54th Quartermaster Regiment (Heavy Maintenance) at Pine Camp
 * 67th Quartermaster Battalion (Light Maintenance) at Fort Bragg
 * A Company, 67th Quartermaster Battalion (Light Maintenance) at Fort Jackson
 * B Company, 67th Quartermaster Battalion (Light Maintenance) at Fort Moultrie
 * 80th Quartermaster Battalion (Light Maintenance) at Holabird Quartermasters Depot
 * B Company, 80th Quartermaster Battalion (Light Maintenance) at Fort Belvoir
 * D Company, 80th Quartermaster Battalion (Light Maintenance) at Fort Belvoir
 * 84th Quartermaster Battalion (Light Maintenance) at Fort Devens
 * A Company, 84th Quartermaster Battalion (Light Maintenance) at Fort Ethan Allen
 * C Company, 84th Quartermaster Battalion (Light Maintenance) at Camp Edwards
 * B Company, 86th Quartermaster Battalion (Light Maintenance) at Camp Stewart
 * 3 Platoon, B Company, 60th Quartermaster Battalion (Laundry) at Fort Bragg
 * 4 Platoon, B Company, 60th Quartermaster Battalion (Laundry) at Fort Jackson
 * C Company, 94th Quartermaster Battalion (Bakery) at Fort Bragg
 * A Company, 95th Quartermaster Battalion (Bakery) at Fort Slocum
 * B Company, 95th Quartermaster Battalion (Bakery) at Fort Dix
 * B Company, 99th Quartermaster Battalion (Bakery) at Fort Jackson
 * A Company, 201st Quartermaster Battalion (Gasoline Supply) at

Ordnance Assets

 * 41st Maintenance and Supply Ordnance Battalion at Fort Jay
 * 16th Medium Maintenance Ordnance Company at Camp Stewart
 * 21st Medium Maintenance Ordnance Company at Camp Stewart
 * 32nd Medium Maintenance Ordnance Company at Fort Bragg
 * 38th Medium Maintenance Ordnance Company at Aberdeen Proving Ground
 * 39th Medium Maintenance Ordnance Company at Aberdeen Proving Ground
 * 45th Medium Maintenance Ordnance Company at Aberdeen Proving Ground
 * 47th Medium Maintenance Ordnance Company at Fort Ethan Allen
 * 50th Ammunition Ordnance Company at Fort Jackson (Detachment in Iceland)
 * 51st Ammunition Ordnance Company at Delaware Ordnance Depot
 * 54th Ammunition Ordnance Company at Fort Bragg
 * 56th Ammunition Ordnance Company at Nansemond Ordnance Depot
 * 58th Ammunition Ordnance Company at Raritan Arsenal
 * 66th Ammunition Ordnance Company at Raritan Arsenal
 * 67th Ammunition Ordnance Company at Raritan Arsenal
 * 68th Ammunition Ordnance Company at Raritan Arsenal

Medical Assets

 * 16th Medical Regiment at Fort Devens
 * 134th Medical Regiment at Fort Bragg
 * 7th General Dispensary Hospital at Arlington Cantonment
 * 1st Evacuation Hospital at Fort George G. Meade
 * 4th Evacuation Hospital at Fort Devens
 * 15th Evacuation Hospital at Fort George G. Meade
 * 19th Evacuation Hospital at Fort Dix
 * 41st Evacuation Hospital at Fort Bragg
 * 61st Surgical Hospital at Fort George G. Meade
 * 56th General Hospital at Fort Jackson
 * 66th General Hospital at Fort Bragg
 * 208th General Hospital at Fort Devens
 * 209th General Hospital at Fort George G. Meade
 * 210th General Hospital at Fort Dix
 * 218th General Hospital at Fort Belvoir
 * 222nd General Hospital at Fort Eustis
 * 223rd General Hospital at Camp Lee
 * 5th Station Hospital at Camp Steward
 * 7th Station Hospital at Camp Edwards
 * 8th Station Hospital at Fort Dix
 * 47th Station Hospital at Camp Lee
 * 109th Station Hospital at Fort Banks
 * 151st Station Hospital at Fort Hancock
 * 159th Station Hospital at Fort Story
 * 160th Station Hospital at Fort Story
 * No. 1 Platoon, 1st Veterinary Company

Second Army (Central Defence Command)
Theoretically the Second Army didn't exist until after mobilization. The army was known as the Central Defence Command and commanded units based all over the Central United States. The army controlled the following states: Wisconsin, Illinois, Michigan, Indiana, Kentucky, Ohio, and West Virginia.
 * Army Headquarters and Headquarters and Special Troops Battalion at Memphis under Lieutenant General Ben Lear
 * 265th Construction Signal Company (Coloured) at Fort Leonard Wood
 * 3rd Infantry Regiment (1st Batt. Inactive, 2nd Batt in Newfoundland, 3rd Batt Active at Fort Snelling)
 * 4th Cavalry Regiment (2nd and 4th Battalions) at Fort Meade
 * 184th Field Artillery Regiment (Medium) (Coloured) at Fort Custer
 * 103rd Coast Antiaicraft Artillery Regiment at Fort Sheridan
 * 40th Coast Artillery Antiaicraft Brigade
 * Brigade Headquarters at Fort Sheridam
 * 61st Coast Artillery Antiaicraft Regiment
 * 210th Coast Artillery Antiaicraft Regiment
 * 72nd Field Artillery Brigade
 * Brigade Headquarters at Fort Leonard Wood
 * 119th Field Artillery Regiment (Heavy)
 * 177th Field Artillery Regiment (Medium)
 * 182nd Field Artillery Regiment (Medium) at Fort Knox

2nd Cavalry Division

 * Divisional Headquarters at Fort Riley under Major General John Millikin
 * 2nd Reconnaissance Squadron at Des Moines
 * Special Troops Battalion
 * Headquarters and Headquarters Troop at Kansas City
 * 2nd Signals Troop at Des Moins
 * 14th Maintenance Ordnance Company at Fort Riley
 * 3rd Cavalry Brigade
 * Brigade Headquarters at Fort Riley
 * 2nd Cavalry Regiment
 * 14th Cavalry Regiment
 * 4th Cavalry Brigade (Coloured)
 * Brigade Headquarters at Des Moines
 * 9th Cavalry Regiment at Fort Riley (Coloured)
 * 10th Cavalry Regiment at Fort Leavenworth (Coloured)
 * 3rd Field Artillery Regiment
 * 9th Engineer Squadron
 * 17th Quartermaster Squadron
 * 2nd Medical Squadron at Kansas City

5th "Red Diamond" Infantry Division

 * Divisional Headquarters at Fort Custer under Major General Cortlandt Parker
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Columbus
 * 5th Signal Company
 * 5th Light Tank Company at Fort Benjamin Harrison
 * 21st Maintenance Ordnance Company
 * 5th Military Police Company
 * 9th Infantry Brigade
 * Brigade Headquarters at Columbus
 * 60th Infantry Regiment
 * 61st Infantry Regiment at Lexington, Kentucky
 * 10th Infantry Brigade
 * Brigade Headquarters at Fort Benjamin Harrison
 * 10th Infantry Regiment at Fort Thomas
 * 11th Infantry Regiment
 * 5th Field Artillery Brigade
 * Brigade Headquarters at Indianapolis
 * 19th Field Artillery Regiment at Columbus
 * 20th Field Artillery Regiment at Toledo
 * 21st Field Artillery Regiment at Lafayette
 * 5th Ammunition Train
 * 7th Engineer Regiment at Cleveland
 * 5th Quartermaster Regiment at Dayton
 * 5th Medical Regiment at Akron

6th "Sight-Seeing Sixth" Infantry Division

 * Divisional Headquarters at Fort Leonard Wood under Major General Clarence Ridley
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Chicago
 * 6th Signal Company
 * 6th Light Tank Company at Jefferson Barracks
 * 13th Maintenance Ordnance Company
 * 6th Military Police Company
 * 11th Infantry Brigade
 * Brigade Headquarters at Chicago
 * 51st Infantry Regiment at Milwaukee
 * 52nd Infantry Regiment
 * 12th Infantry Brigade
 * Brigade Headquarters at Fort Sheridan
 * 2nd Infantry Regiment at Fort Wayne
 * 6th Infantry Regiment at Jefferson Barracks
 * 6th Field Artillery Brigade
 * Brigade Headquarters at Fort Sheridan
 * 3rd Field Artillery Regiment
 * 22nd Field Artillery Regiment at Chicago
 * 78th Field Artillery Regiment at Chicago
 * 10th Engineer Regiment
 * 6th Quartermaster Regiment
 * 6th Medical Regiment

VII Corps
The 7th Corps were based in the south west and controlled the units based in that area, including regular and national guard units.
 * Corps Headquarters at Birmingham, Alabama under Major General Robert Charlwood Richardson Jr
 * VII Corps Special Troops Company at Fort McClellan
 * 58th Signal Battalion at Camp Forrest
 * 107th Cavalry Regiment at Camp Forrest
 * 35th Combat Engineer Regiment at Camp J. T. Robinson
 * 75th Field Artillery Brigade
 * Brigade Headquarters at Camp Forrest
 * 168th Field Artillery Regiment (Heavy)
 * 181st Field Artillery Regiment (Medium)
 * 191st Field Artillery Regiment (Medium)
 * 14th Artillery Observation Battalion
 * 7th Ordnance Battalion at Birmingham, Alabama
 * 207th Military Police Company at Fort McClellan
 * 151st Medical Battalion at Fort McClellan

27th "Empire" Infantry Division

 * Divisional Headquarters at New York City under Major General Ralph Pennell (New York National Guard)
 * Special Troops Battalion
 * Headquarters and Headquarters Company at New York City
 * 27th Signal Company at Yonkers
 * 27th Light Tank Company
 * 102nd Maintenance Ordnance Company
 * 27th Military Police Company in Yonkers
 * 53rd Infantry Brigade
 * Brigade Headquarters in Albany
 * 105th Infantry Regiment at Troy
 * 106th Infantry Regiment at Brooklyn
 * 54th Infantry Brigade
 * Brigade Headquarters at Buffalo
 * 107th Infantry Regiment at New York City
 * 108th Infantry Regiment at Syracuse
 * 52nd Field Artillery Brigade
 * Brigade Headquarters at Brooklyn
 * 104th Field Artillery Regiment at New York City
 * 105th Field Artillery Regiment at New York City
 * 106th Field Artillery Regiment at Buffalo
 * 102nd Ammunition Train
 * 102nd Engineer Regiment
 * 102nd Quartermaster Regiment at Brooklyn
 * 102nd Medical Regiment

33rd "Prarie" Infantry Division

 * Headquarters at Chicago under Major General Samuel Lawton (Illinois National Guard)
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Chicago
 * 33rd Signal Company
 * 33rd Light Tank Company at Maywood
 * 108th Maintenance Ordnance Company
 * 33rd Military Police Company
 * 65th Infantry Brigade
 * Brigade Headquarters at Pontiac
 * 129th Infantry Regiment at Sycamore
 * 130th Infantry Regiment at Delavan
 * 66th Infantry Brigade
 * Brigade Headquarters at Chicago
 * 131st Infantry Regiment
 * 132nd Infantry Regiment
 * 58th Field Artillery Brigade
 * Brigade Headquarters at Chicago
 * 122nd Field Artillery Regiment
 * 123rd Field Artillery Regiment at Monmouth, Illinois
 * 124th Field Artillery Regiment
 * 108th Ammunition Train
 * 108th Engineer Regiment
 * 108th Quartermaster Regiment
 * 108th Medical Regiment

35th "Santa Fe" Infantry Division

 * Divisional Headquarters at Camp Joseph T. Robinson, Kansas City under Major General William Simpson (Missouri, Kansas, and Nebraska National Guards)
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Warrensburg
 * 35th Signal Company at Kansas City
 * 35th Light Tank Company at St. Joseph
 * 110th Maintenance Ordnance Company
 * 35th Military Police Company at Garden City
 * 69th Infantry Brigade
 * Brigade Headquarters at Omaha
 * 134th Infantry Regiment
 * 137th Infantry Regiment at Horton
 * 70th Infantry Brigade
 * Brigade Headquarters at Jefferson City
 * 138th Infantry Regiment at St. Louis
 * 140th Infantry Regiment at Caruthersville
 * 60th Field Artillery Brigade
 * Brigade Headquarters at Topeka
 * 130th Field Artillery Regiment at Hutchinson
 * 142nd Field Artillery Regiment at El Dorado
 * 161st Field Artillery Regiment
 * 110th Ammunition Train
 * 110th Engineer Regiment
 * 110th Quartermaster Regiment
 * 110th Medical Regiment

Engineer Assets

 * 43rd General Service Engineer Regiment at Camp J. T. Robinson
 * 86th Heavy Pontoon Engineer Battalion at Fort Knox
 * 89th Heavy Pontoon Engineer Battalion at Fort Leonard Wood
 * 74th Pontoon Engineer Company
 * 76th Pontoon Engineer Company (Coloured) at Fort McClellan
 * 77th Pontoon Engineer Company (Coloured) at Fort Custer
 * 92nd Seperate Engineer Battalion (Coloured) at Fort Leonard Wood
 * 94th Seperate Engineer Battalion (Coloured) at Fort Custer
 * 576th Dump Truck Engineer Battalion (Coloured) at Fort Leonard Wood
 * 396th Engineer Depot Company at Fort Leonard Wood

Quartermaster Assets

 * K and L Companies, 22nd Quartermaster Regiment (Coloured) at Fort Knox
 * M Company, 28th Quartermaster Regiment (Coloured) at Camp Forrest
 * 1st Battalion (Less C and D Companies), 29th Quartermaster Regiment (Coloured) at Fort Leonard Wood
 * 1st Battalion (Less A and B Companies), 48th Quartermaster Regiment (Coloured) at Fort Custer
 * A Company, 48th Quartermaster Regiment (Coloured) at Fort Sheridan
 * B Company, 48th Quartermaster Regiment (Coloured) at Fort Wayne
 * M Company, 48th Quartermaster Regiment (Coloured) at Fort McClellan
 * 4 Platoon, 21st Quartermaster Regiment (Car) at Birmingham, Alabama
 * 85th Depot Supply Quartermaster Company at Fort Custer
 * 88th Railhead Quartermaster Depot Company at Fort Leonard Wood
 * 90th Railhead Quartermaster Depot Company at Fort Knox
 * A Company, 252nd Quartermaster Battalion (Remounts) Depot at Fort Reno
 * A Company, 96th Quartermaster Battalion (Less 3 Platoons) (Bakery) Depot at Fort Riley
 * 2 and 3 Platoons, A Company, 96th Quartermaster Battalion (Bakery) Depot at Camp J. T. Robinson
 * 4 Platoon, A Company, 86th Quartermaster Battalion (Bakery) Depot at Fort Leonard Wood
 * A Company, 203rd Quartermaster Battalion (Gasoline Supply) Depot at Fort Knox
 * A Company, 207th Quartermaster Battalion (Gasoline Supply) Depot at Fort Leonard Wood
 * 228th Quartermaster Company Depot (Salvage Collection) (Coloured) at Fort Leonard Wood
 * 87th Light Maintenance Quartermaster Battalion at Fort Leonard Wood
 * A Company, 81st Quartermaster Battalion (Light Maintenance) at Fort Custer
 * B Company, 81st Quartermaster Battalion (Light Maintenance) at Fort Sheridan
 * A Company, 85th Quartermaster Battalion (Light Maintenance) at Fort Benjamin Harrison
 * B Company, 85th Quartermaster Battalion (Light Maintenance) at Fort Knox
 * C Company, 86th Quartermaster Battalion (Light Maintenance) (Less 2 Platoon) at Camp Forrest
 * 2 Platoon, C Company, 86th Quartermaster Battalion (Light Maintenance) at Fort McClellan
 * 56th Heavy Quartermaster Regiment at Fort Leonard Wood

Ordnance Assets

 * 42nd Ordnance Battalion at Fort Leonard Wood
 * 36th Medium Maintenance Ordnance Company at Fort Forrest
 * 46th Medium Maintenance Ordnance Company at Fort Custer
 * 52nd Ammunition Ordnance Company at Savannah Ordnance Depot
 * 53rd Ammunition Ordnance Company at Fort Knox
 * 69th Ammunition Ordnance Company (Coloured) at Savannah Ordnance Depot
 * 621st Ammunition Ordnance Company (Coloured) at Savannah Ordnance Depot
 * 630th Ammunition Ordnance Company (Coloured) at Savannah Ordnance Depot
 * 632nd Ammunition Ordnance Company (Coloured) at Savannah Ordnance Depot
 * 636th Ammunition Ordnance Company (Coloured) at Savannah Ordnance Depot

Medical Assets

 * 68th Medical Regiment at Camp Forrest
 * 10th Evacuation Hospital at Fort Knox
 * 11th Evacuation Hospital at Camp J. T. Robinson
 * 23rd Evacuation Hospital at Fort Custer
 * 37th Evacuation Hospital at Fort McClellan
 * 42nd Evacuation Hospital at Fort Leonard Wood
 * 147th Evacuation Hospital at Fort Leonard Wood
 * 214th Evacuation Hospital at Camp J. T. Robinson
 * 215th Evacuation Hospital at Fort Custer
 * 216th Evacuation Hospital at Camp Forrest
 * 217th Evacuation Hospital at Fort Riley
 * 6th Surgical Hospital at Camp Forrest
 * 9th Station Hospital at Fort McClellan
 * 12th Station Hospital at Fort Dix
 * 2 Platoon, 1st Veterinary Company at Fort Riley
 * A Company, 40th (Animal) Ambulance Battalion at Fort Leonard Wood

Third Army (Southern Defence Command)
Theoretically the Third Army didn't exist until after mobilization. The army was known as the Southern Defence Command and commanded units based all over the Southern United States. The army constrolled the following states: New Mexico, Arizona, Colorado, Oklahoma, Texas, Arkansas, Louisiana, Mississippi, Tennessee, Alabama, Georgia, Florida, South Carolina and North Carolina.
 * Army Headquarters and Special Troops Battalion at Fort Sam Houston under Lieutenant General Walter Krueger
 * 8th Field Artillery Observation Battalion at Fort Sill
 * 14th Field Artillery Observation Battalion at Fort Sill
 * 24th Seperate Infantry Regiment (Coloured) at Fort Benning
 * 25th Seperate Infantry Regiment (Coloured) at Fort Huachuca
 * 367th Seperate Infantry Regiment (Coloured) at Fort Huachuca
 * 502nd Parachute Infantry Regiment at Fort Benning
 * 503rd Parachute Infantry Regiment at Fort Benning
 * 504th Parachute Infantry Regiment at Fort Benning
 * 101st Tank Destroyer Battalion at Fort Benning
 * 504th Military Police Battalion
 * 2nd Chemical Regiment at Fort Benning
 * 3rd Chemical Maintenance Company
 * 3rd Chemical Depot Company
 * 46th Field Artillery Brigade (Coloured)
 * Brigade Headquarters at Camp Livingston under Brigadier General George Harris Paine
 * 350th Field Artillery Regiment (Coloured) (Medium)
 * 351st Field Artillery Regiment (Coloured) (Medium)
 * 353rd Field Artillery Regiment (Coloured) (Heavy)

1st Cavalry Division

 * Divisional Headquarters at Fort Bliss under Major General Innis Palmer Swift (Regular Army)
 * 1st Reconnaissance Squadron
 * Special Troops Battalion
 * Headquarters and Headquarters Troop at Fort Bliss
 * 1st Signals Troop
 * 10th Light Tank Company (Reserve)
 * 27th Maintenance Ordnance Company
 * 1st Cavalry Brigade
 * Brigade Headquarters at Fort Clark
 * 5th Cavalry Regiment
 * 12th Cavalry Regiment at Fort Brown
 * 2nd Cavalry Brigade
 * Brigade Headquarters at Fort Bliss
 * 7th Cavalry Regiment
 * 8th Cavalry Regiment
 * 82nd Field Artillery Regiment
 * 8th Engineer Squadron at Fort McIntosh
 * 16th Quartermaster Squadron
 * 1st Medical Squadron

4th Coast Artillery District
The 4th Coast Artillery district was responsible for the following: Subordinate commands consisted of the Coast (later redesignated Harbor) Defenses of Cape Fear, Charleston, Key West, Mobile, New Orleans, Pensacola, Savannah, and Pensacola. Responsible for the coastal defense of harbors and operationally significant maritime areas of the South Atlantic seaboard and the Gulf of Mexico, not including the Texas coast.
 * District Headquarters at Fort McPherson under Brigadier General Richard Cox
 * Harbour Defences of Charleston
 * Harbour Defences Headquarters at Fort Moultrie
 * Harbour Entrance Control Post at Fort Moultrie
 * No. 1-3 AA Batteries (Composite)
 * 2nd Battalion, 13th Coast Artillery Regiment (Heapy)
 * 263rd Harbor Defence Regiment (Type B)
 * Fort Sumter (Gun Battery)
 * Fort Moultrie (2 Mortar Batteries, 5 Gun Batteries, Heavy Gun Battery)
 * Harbour Defences of Savannah (Not Fully active yet)
 * Harbour Defence Headquarters at Fort Screven
 * 252nd Coast Artillery Regiment (Mobile)
 * Fort Screven
 * Harbour Defences of Key West
 * Harbour Defence Headquarters at Key West Barracks
 * Harbour Entrance Control Post at Fort Taylor
 * 1st Battalion, 13th Coast Artillery Regiment at Fort Taylor
 * No. 1 and No. 2 AA Batteries
 * Fort Taylor (4 Gun Batteries, Mortar Battery, Heavy Battery)
 * Harbour Defences of Pensacola
 * Harbour Defence Headquarters at Fort Barrancas
 * Harbour Entrance Control Post at Fort Pickens
 * 13th Harbor Defense Regiment (Type A)
 * No. 1 and No. 2 AA Batteries
 * 2 USAJMP Companies
 * Fort Pickens (4 Gun Batteries, Mortar Battery, Heavy Battery)
 * Harbour Defences of Galveston
 * Harbour Defences Headquarters at Fort Crockett
 * Harbour Entrance Control Post at Fort San Jacinto
 * 20th Harbor Defense Regiment (Type A)
 * 265th Harbor Defense Regiment (Type B)
 * No. 1, 2, and 3 AA Batteries (Composite)
 * Fort Crockett (4 Gun Batteries and Mortar Battery)
 * Fort San Jacinto (2 Gun Batteries and Mortar Battery)
 * Fort Travis (2 Gun Batteries)

Signal Assets

 * 52nd Signal Battalion at Fort Sam Houston
 * 101st Signal Battalion at Camp Shelby
 * 3rd Aircraft Warning Signal Company at Fort Sam Houston
 * 26th Construction Signals Battalion at Camp Claiborne
 * 27th Construction Signals Battalion at Camp Bowie
 * 254th Construction Signals Company at Camp Claiborne
 * 256th Construction Signals Company at Camp Bowie
 * 101st Radio Intelligence Signals Company at Camp Shelby
 * 122nd Radio Intelligence Signals Company at Fort Sam Houston
 * 123rd Radio Intelligence Signals Company at Fort Benning
 * 124th Radio Intelligence Signals Company at Fort Sam Houston
 * 161st Photographic Signals Company (Detachment in Iceland) at Fort Benning
 * 177th Repair Signals Company at Camp Claiborne
 * 203rd Signals Depot Company at Camp Claiborne
 * 280th Carrier Pigeon Signals Company at Camp Claiborne

Anti-Aircraft Assets

 * 204th Coast Artillery Regiment at Camp Hulen
 * 211th Coast Artillery Regiment at Camp Hulen
 * 105th Coast Artillery Anti-Aircraft at Camp Hulen
 * 106th Coast Artillery Anti-Aircraft at Camp Hulen
 * 423rd Composite Separate Anti-Aircraft Battalion at Fort Bliss
 * 33rd Coast Artillery Anti-Aircraft Brigade
 * Brigade Headquarters at Camp Hulen under Brigadier General C. C. Curtis
 * 69th Coast Artillery Regiment
 * 197th Coast Artillery Regiment
 * 203rd Coast Artillery Regiment
 * 212th Coast Artillery Regiment
 * 39th Coast Artillery Anti-Aircraft Brigade
 * Brigade Headquarters at Fort Bliss under Brigadier General O. L. Spiller
 * 79th Coast Artillery Regiment
 * 202nd Coast Artillery Regiment
 * 260th Coast Artillery Regiment

Engineer Assets

 * 42nd General Service Engineer Regiment at Camp Shelby
 * 45th General Service Engineer Regiment (Coloured) at Camp Blanding
 * 46th General Service Regiment at Camp Bowie
 * 91st Seperate Engineer Battalion (Coloured) at Camp Shelby
 * 93rd Seperate Engineer Battalion (Coloured) at Camp Livingston
 * 97th Seperate Engineer Battalion (Coloured) at Camp Blanding
 * 98th Seperate Engineer Battalion (Coloured) at Camp Bowie
 * 87th Heavy Pontoon Engineer Battalion at Fort Benning
 * 88th Heavy Pontoon Engineer Battalion at Camp Beauregard
 * 71st Pontoon Engineer Company at Fort Benning
 * 75th Pontoon Engineer Company at Camp Beauregard
 * 80th Water Supply Engineer Battalion at Camp Livingston
 * 711th Railway Operations Engineer Battalion at Camp Claiborne
 * 585th Dump Truck Engineer Company at Camp Claiborne
 * 57th Engineer Shop Company at Camp Claiborne
 * 394th Engineer Depot Company at Camp Shelby
 * 397th Engineer Depot Company at Camp Claiborne

Quartermaster Assets

 * Truck Transportation
 * 23rd Quartermaster Regiment
 * A Company at Fort Benning
 * I Company at Fort Sill
 * 28th Quartermaster Regiment
 * Headquarters and Headquarters Detachment, 1st Battalion (-C and D Companies) at Camp Shelby
 * 2nd Battalion (-E, G, and H Companies) at Camp Livingston
 * G Company at Fort Sill
 * 3rd Battalion (-K, L, and M Companies) at Camp Bowie
 * K and I Companies at Fort Bliss
 * L Company at Camp Hulen
 * M Company at Fort Sam Houston
 * 48th Quartermaster Regiment
 * Headquarters and Headquarters Detachment and 3rd Battalion (-M Company) at Fort Benning


 * Heavy Maintenance
 * 53rd Quartermaster Regiment
 * 2nd Battalion (-H Company) at Fort Benning
 * 55th Quartermaster Regiment
 * Headquarters and Headquarters Detachment at Normoyle Quartermaster Depot
 * 2nd Battalion (-H Company) at Fort Sill
 * 3rd Battalion (-M Company) at Fort Bliss
 * 57th Quartermaster Regiment
 * 1st Battalion (-C and D Companies) at Camp Shelby
 * 2nd Battalion (-G and H Companies) at Camp Livingston
 * G Company at Camp Polk
 * H Company at Camp Blanding


 * Light Maintenance
 * 68th Quartermaster Regiment
 * Headquarters and Headquarters Detachment at Normoyle Quartermaster Depot
 * A Company at Fort Crockett
 * B Company at Fort Sill
 * C Company at Camp Wolters
 * D Company at Fort Sam Houston
 * 71st Quartermaster Regiment
 * Headquarters and Headquarters Detachment and A and C Companies at Camp Shelby
 * B Company at Camp Livingston
 * 72nd Quartermaster Regiment
 * A Company at Camp Hulen
 * B Company at Fort Bliss
 * 82nd Quartermaster Regiment
 * Headquarters and Headquarters Detachment and B Company at Camp Blanding
 * 86th Quartermaster Regiment
 * Headquarters and Headquarters Detachment and D Company at Fort Benning
 * A Company at Fort McPherson
 * Depot Support
 * A Company, 202nd Quartermaster Battalion (Gasoline Supply) at Camp Bowie
 * 227th Salvage Collecting Quartermaster Depot at Camp Shelby
 * 229th Salvage Collecting Quartermaster Depot at Camp Bowie
 * A Company, 301st Quartermaster Battalion Depot (Sterilization and Bath) at Camp Livingston
 * 21st Quartermaster Depot Car (-3 Platoons) at Fort Sam Houston
 * 22nd Quartermaster Depot Car (-3 Platoons) at Camp Blanding
 * 3rd Platoon, 22nd Quartermaster Depot Car at Camp Beauregard
 * 56th Quartermaster (Commissary Sales) Depot at Camp Livingston
 * 2nd Platoon, 56th Quartermaster (Commissary Sales) Depot at Camp Shelby
 * 3rd Platoon, 56th Quartermaster (Commissary Sales) Depot at Camp Blanding
 * 82nd Quartermaster Depot (Depot Supply) at Camp Livingston
 * 83rd Quartermaster Depot (Depot Supply) at Fort Benning
 * 84th Quartermaster Depot (Depot Supply) at Fort Sam Houston
 * 92nd Railhead Quartermaster Depot at Camp Shelby
 * 93rd Railhead Quartermaster Depot at Camp Livingston
 * 94th Railhead Quartermaster Depot at Camp Blanding
 * 216th Quartermaster Depot (Shoe Repair) at Camp Shelby
 * B Company, 252nd Quartermaster Battalion (Remount) at Fort Bliss
 * 60th Quartermaster Battalion (Laundry)
 * A Company at Camp Livingston
 * B Company at Fort Benning
 * 94th Quartermaster Battalion (Bakery)
 * 1st Battalion (-C and D Companies) at Camp Livingston
 * D Company at Camp Shelby
 * 97th Quartermaster Battalion (Bakery)
 * A Company at Fort Sam Houston
 * B Company at Fort Sill
 * 99th Quartermaster Battalion (Bakery)
 * A Company at Camp Blanding
 * C Company at Fort Benning
 * 205th Quartermaster Battalion (Gasoline Supply)
 * A Company at Fort Benning
 * C Company at Camp Livingston
 * 240th Quartermaster Battalion (Service) at Camp Livingston (-C and D Companies)
 * C Company at Camp Blanding

Ordnance Assets

 * 43rd Ordnance Battalion (Maintenance and Supply) in San Antonio
 * 13th Ordnance Company (Medium Maintenance) at Camp Hulen
 * 25th Ordnance Company (Medium Maintenance) at Camp Hulen
 * 26th Ordnance Company (Medium Maintenance) at Fort Bliss
 * 37th Ordnance Company (Medium Maintenance) at Fort Benning
 * 81st Ordnance Company (Medium Maintenance) at Fort Bliss
 * 57th Ordnance Company (Ammunition) at Camp Blanding
 * 59th Ordnance Company (Ammunition) at Fort Sill
 * 60th Ordnance Company (Ammunition) at Camp Livingston
 * 64th Ordnance Company (Ammunition) at Camp Shelby
 * 65th Ordnance Company (Ammunition) at Fort Benning

Medical Assets

 * 64th Medical Regiment at Camp Bowie
 * 65th Medical Regiment at Fort Oglethorpe
 * 135th Medical Regiment at Camp Shelby
 * 3rd Evacuation Hospital at Fort Benning
 * 6th Evacuation Hospital at Camp Blanding
 * 36th Evacuation Hospital at Fort Sam Houston
 * 43rd Evacuation Hospital at Camp Claiborne
 * 54th Evacuation Hospital at Camp Shelby
 * 33rd Surgical Hospital at Fort Oglethorpe
 * 63rd Surgical Hospital at Fort Oglethorpe
 * 53rd General Hospital at Fort Benning
 * 63rd General Hospital at Camp Blanding
 * 148th General Hospital at Camp Shelby
 * 183rd General Hospital at Fort Sill
 * 204th General Hospital at Fort Bliss
 * 207th General Hospital at Camp Livingston
 * 212th General Hospital at Camp Claiborne
 * 213th General Hospital at Camp Bowie
 * 10th Station Hospital at Camp Claiborne
 * 22nd Station Hospital at Camp Hulen
 * 152nd Station Hospital at Fort Barrancas
 * 154th Station Hospital at Camp Wheeler
 * 165th Station Hospital at Camp Wolters
 * 165th Station Hospital at Fort Crockett
 * 2nd Medical Laboratory at Fort Sam Houston
 * 3rd Medical Supply Depot at Fort Sam Houston
 * 4th Medical Supply Depot at Fort Sam Houston (Detachment in Iceland)
 * 5th Medical Supply Depot at Fort Sam Houston
 * 1st Veterinary Company (-3 Platoons) at Fort Bliss
 * 16th Veterinary Evacuation Hospital at Fort Bliss
 * 30th Veterinary General Hospital at Fort Bliss

IV Corps

 * Corps Headquarters at Camp Blanding under Major General Oscar Woolverton Griswold
 * IV Corps Special Troops Company at Fort Benning
 * 62nd Signal Battalion
 * 6th Cavalry Regiment (Horse and Mechanized) at Fort Oglethorpe
 * 94th Tank Destroyer Battalion at Fort Benning
 * 20th Combat Engineer Regiment at Fort Benning
 * 64th Topographic Engineer Company at Fort Benning
 * B and D Companies, 28th Quartermaster Regiment
 * 4th Ordnance Maintenance Battalion
 * 58th Medical Battalion
 * 204th Military Police Company

4th "Ivy" Infantry Division

 * Divisional Headquarters at Fort McPherson under Major General Fred Wallace
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Atlanta
 * 4th Signal Company at Fort Des Moines
 * 4th Light Tank Company at Fort McClellan
 * 17th Maintenance Ordnance Company at Fort Benning
 * Military Police Company
 * 7th Infantry Brigade
 * Brigade Headquarters at Atlanta
 * 29th Infantry Regiment at Fort Benning
 * 39th Infantry Regiment at Clemson
 * 8th Infantry Brigade
 * Brigade Headquarters at Fort McPherson
 * 8th Infantry Regiment at Fort Moultrie
 * 22nd Infantry Regiment
 * 4th Field Artillery Brigade
 * Brigade Headquarters at Fort Sill
 * 1st Field Artillery Regiment
 * 77th Field Artillery Regiment at Fort D. A. Russell
 * 83rd Field Artillery Regiment at Fort Benning
 * 4th Ammunition Train
 * 4th Engineer Regiment at Auburn
 * 4th Quartermaster Regiment at Atlanta
 * 4th Medical Regiment at Fort Benning

31st "Dixie" Infantry Division

 * Divisional Headquarters at Camp Blanding under Major General John Persces (Florida, Mississippi, Louisiana, and Alabama National Guards)
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Mobile
 * 31st Signal Company
 * 31st Light Tank Company at Ozark
 * 106th Maintenance Ordnance Company
 * 31st Military Police at Prichard
 * 61st Infantry Brigade
 * Brigade Headquarters at Baton Rouge
 * 155th Infantry Regiment at Vicksburg
 * 156th Infantry Regiment at Shreveport
 * 62nd Infantry Brigade
 * Brigade Headquarters at Birmingham
 * 124th Infantry Regiment at Jacksonville
 * 167th Infantry Regiment at Gadsden
 * 56th Field Artillery Brigade
 * Brigade Headquarters at Jacksonville
 * 114th Field Artillery Regiment
 * 116th Field Artillery Regiment
 * 117th Field Artillery Regiment
 * 106th Ammunition Train at Luverne
 * 106th Engineer Regiment at Jackson, Mississippi
 * 106th Quartermaster Regiment at St Augustine
 * 106th Medical Regiment at New Orleans

43rd "Winged Victory" Infantry Division

 * Divisional Headquarters at Camp Blanding under Major General John Hester (Connecticut, Maine, Rhode Island, and Vermont National Guards)
 * Special Troops Battalion
 * Headquarters at Danielson
 * Headquarters Company at Putnam, Connecticut
 * 43rd Signal Company at Providence
 * 43rd Light Tank Company at Hartford
 * 118th Maintenance Ordnance Company at Providence
 * 43rd Military Police Company at Danielson
 * 85th Infantry Brigade
 * Brigade Headquarters at New Haven
 * 102nd Infantry Regiment
 * 169th Infantry Regiment at Hartford
 * 86th Infantry Brigade
 * Brigade Headquarters at Rutland
 * 103rd Infantry Regiment at Portland
 * 172nd Infantry Regiment at Bennington
 * 68th Field Artillery Brigade
 * 103rd Field Artillery Regiment at Providence
 * 152nd Field Artillery Regiment at Bangor
 * 192nd Field Artillery Regiment at New London
 * 118th Ammunition Train
 * 118th Engineer Regiment at Providence
 * 118th Quartermaster Regiment in West Hartford
 * 118th Medical Regiment at New Haven

V Corps

 * Corps Headquarters at Camp Beauregard under Major General Edmund Daley
 * V Corps Special Troops Company
 * 63rd Signal Battalion at Camp Claiborne
 * 106th Cavalry Regiment (Horse and Mechanized) at Camp Livingston
 * 102nd Tank Destroyer Battalion at Camp Shelby
 * 151st Combat Engineer Regiment (Except 1st Batt.) at Camp Claiborne
 * 67th Topographic Engineer Company at Camp Claiborne
 * K and L Companies, 28th Quartermaster Regiment at Camp Claiborne
 * 5th Maintenance Ordnance Battalion
 * 53rd Medical Battalion at Camp Claiborne
 * 205th Military Police Company
 * 73rd Field Artillery Brigade
 * Brigade Headquarters at Camp Shelby under Brigadier General William March
 * 141st Medium Field Artillery Regiment
 * 166th Medium Field Artillery Regiment
 * 190th Heavy Field Artillery Regiment

32nd "Red Arrow" Infantry Division

 * Divisional Headquarters at Camp Livingston under Major General Irving Fish (Michigan and Wisconsin National Guards)
 * Special Troops Battalion
 * Headquarters and Headquarters Company in Detroit
 * 32nd Signal Company at Ypsilanti
 * 32nd Light Tank Company at Janesville
 * 107th Maintenance Ordnance Company at Pontiac
 * 32nd Military Police Company
 * 63rd Infantry Brigade
 * Brigade Headquarters in Detroit
 * 125th Infantry Regiment
 * 126th Infantry Regiment in Grand Rapids
 * 64th Infantry Brigade
 * Brigade Headquarters at Milwaukee
 * 127th Infantry Regiment in Crandon
 * 128th Infantry Regiment in Oshkosh
 * 57th Field Artillery Brigade
 * Brigade Headquarters in Milwaukee
 * 119th Field Artillery Regiment in Lansing
 * 120th Field Artillery Regiment
 * 121st Field Artillery Regiment in Beloit
 * 107th Ammunition Train
 * 107th Engineer Regiment
 * 107th Quartermaster Regiment in Madison
 * 107th Medical Regiment

34th "Red Bull" Infantry Division

 * Divisional Headquarters at Camp Claiborne under Major General Russell Hartle (Iowa, Minnesota, South Dakota, and North Dakota National Guards)
 * Special Troops Battalion
 * Headquarters and Headquarters Company in Council Bluffs
 * 34th Signal Company at Watertown
 * 34th Light Tank Company in Brainerd
 * 109th Maintenance Ordnance Company
 * 34th Military Police Company in Aitkin
 * 67th Infantry Brigade
 * Brigade Headquarters in Des Moines
 * 133rd Infantry Regiment in Sioux City
 * 168th Infantry Regiment in Council Bluffs
 * 68th Infantry Brigade
 * Brigade Headquarters in Valley City
 * 135th Infantry Regiment in Minneapolis
 * 164th Infantry Regiment in Fargo
 * 59th Field Artillery Brigade
 * Brigade Headquarters in Minneapolis
 * 125th Field Artillery Regiment in Duluth
 * 151st Field Artillery Regiment
 * 185th Field Artillery Regiment in Davenport
 * 109th Engineer Regiment in Rapid City
 * 109th Quartermaster Regiment in Osccola
 * 136th Medical Regiment in Ames

37th "Buckeye" Infantry Division

 * Divisional Headquarters at Camp Shelby under Major General Robert Beightler (Ohio National Guard)
 * Special Troops Battalion
 * Headquarters and Headquarters Company in Columbus
 * 37th Signal Company
 * 37th Light Tank Company in Port Clinton
 * 112th Maintenance Ordnance Company in Chillicothe
 * 37th Military Police Company
 * 73rd Infantry Brigade
 * Brigade Headquarters in Cleveland
 * 145th Infantry Regiment
 * 148th Infantry Regiment in Columbus
 * 74th Infantry Brigade
 * Brigade Headquarters in Columbus
 * 147th Infantry Regiment in Cincinnati
 * 166th Infantry Regiment
 * 62nd Field Artillery Brigade
 * Brigade Headquarters in Cleveland
 * 134th Field Artillery Regiment in Columbus
 * 135th Field Artillery Regiment
 * 136th Field Artillery Regiment in Columbus
 * 112th Ammunition Train
 * 112th Engineer Regiment in Cleveland
 * 112th Quartermaster Regiment
 * 112th Medical Regiment

38th "Cyclone" Infantry Division

 * Divisional Headquarters at Camp Shelby under Daniel Isom Sultan (Indiana, Kentucky, and West Virginia National Guards)
 * Special Troops Battalion
 * Headquarters and Headquarters Company in Indianapolis
 * 38th Signal Company
 * 38th Light Tank Company in Harrodsburg
 * 113th Maintenance Ordnance Company in Bardstown
 * 38th Military Police Company in Jackson
 * 75th Infantry Brigade
 * Brigade Headquarters in Bowling Green
 * 149th Infantry Regiment in Louisville
 * 150th Infantry Regiment in Welch
 * 76th Infantry Brigade
 * Brigade Headquarters at Shelbyville
 * 151st Infantry Regiment in Indianapolis
 * 152nd Infantry Regiment in Indianapolis
 * 63rd Field Artillery Brigade
 * Brigade Headquarters in Louisville
 * 138th Field Artillery Regiment
 * 139th Field Artillery Regiment in Indianapolis
 * 150th Field Artillery Regiment in Indianapolis
 * 113th Ammunition Train
 * 113th Engineer Regiment
 * 113th Quartermaster Regiment
 * 113th Medical Regiment

VIII Corps

 * Corps Headquarters at Camp Bowie under Major General George Veazey Strong
 * VIII Corps Special Troops Company
 * 53rd Signal Battalion
 * 113th Cavalry Regiment (Horse and Mechanized)
 * 104th Tank Destroyer Battalion at Fort Sam Houston
 * 37th Combat Engineer Regiment
 * E Company, 29th Quartermaster Regiment
 * 8th Maintenance Ordnance Battalion
 * 208th Military Police Company
 * 55th Medical Battalion at Fort Sam Houston
 * 18th Field Artillery Brigade
 * Brigade Headquarters at Fort Sill under Brigadier General Vincent Meyer
 * 2nd Survey Field Artillery Battalion
 * 77th Medium Field Artillery Regiment at Fort D. A. Russell
 * 142nd Medium Field Artillery Regiment
 * 349th Heavy Field Artillery Regiment (Coloured)

2nd "Indianhead" Infantry Division

 * Divisional Headquarters at Fort Sam Houston under Major General John Lee
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Fort Sam Houston
 * 2nd Signal Company
 * 2nd Light Tank Company
 * 2nd Maintenance Ordnance Company
 * 2nd Military Police Company
 * 3rd Infantry Brigade
 * Brigade Headquarters at Fort Sam Houston
 * 9th Infantry Regiment
 * 23rd Infantry Regiment
 * 4th Infantry Brigade
 * Brigade Headquarters at Fort Francis E. Warren
 * 1st Infantry Regiment
 * 20th Infantry Regiment
 * 2nd Field Artillery Brigade
 * Brigade Headquarters at Fort Sam Houston
 * 12th Field Artillery Regiment
 * 15th Field Artillery Regiment
 * 17th Field Artillery Regiment at Fort Bragg
 * 2nd Ammunition Train
 * 2nd Engineer Regiment at Fort Logan
 * 2nd Quartermaster Regiment
 * 2nd Medical Regiment

36th "Texas" Infantry Division

 * Divisional Headquarters at Camp Bowie under Major General Fred Walker (Texas National Guard)
 * Special Troops Battalion
 * Headquarters and Headquarters Company in San Antonio
 * 36th Signal Company in Denison
 * 36th Light Tank Company in Houston
 * 111th Maintenance Ordnance Company
 * 36th Military Police Company
 * 71st Infantry Brigade
 * Brigade Headquarters in San Antonio
 * 141st Infantry Regiment
 * 142nd Infantry Regiment in Fort Worth
 * 72nd Infantry Brigade
 * Brigade Headquarters in Dallas
 * 143rd Infantry Regiment in Waco
 * 144th Infantry Regiment
 * 61st Field Artillery Brigade
 * Brigade Headquarters in San Antonio
 * 131st Field Artillery Regiment in Austin
 * 132nd Field Artillery Regiment in Dallas
 * 133rd Field Artillery Regiment
 * 111th Ammunition Train
 * 111th Engineer Regiment
 * 111th Quartermaster Regiment in Austin
 * 111th Medical Regiment

45th Infantry Division

 * Divisional Headquarters at Camp Barkeley under Major General William Key (Oklahoma, Arizona, New Mexico, and Colorado National Guards)
 * Special Troops Battalion
 * Headquarters in Stillwater
 * Headquarters Company in Wetumka
 * 45th Signal Company in Alva
 * 45th Light Tank Company in Denver
 * 120th Maintenance Ordnance Company in Claremore
 * 45th Military Police Company in Marlow
 * 89th Infantry Brigade
 * Brigade Headquarters in Denver
 * 157th Infantry Regiment
 * 158th Infantry Regiment in Tuscon
 * 90th Infantry Brigade
 * Brigade Headquarters in Oklahoma City
 * 179th Infantry Regiment in Oawnee
 * 180th Infantry Regiment at Muskogee
 * 70th Field Artillery Brigade
 * Brigade Headquarters in Oklahoma City
 * 158th Field Artillery Regiment in Anadarko
 * 160th Field Artillery Regiment in Tulsa
 * 189th Field Artillery Regiment in Enid
 * 120th Ammunition Train
 * 120th Engineer Regiment in Las Cruces
 * 120th Quartermaster Regiment
 * 120th Medical Regiment

Fourth Army (Western Defence Command)
The Fourth Army officially known as the Western Defence Command controlled the following states: Minnesota, Iowa, Missouri, Kansas, Nebraska, South Dakota, North Dakota, Wisconsin, Montana, Idaho, Nevada, Utah, Oregon, Washington, and California.
 * Army Headquarters and Special Troops Battalion in Presidio of San Francisco under Lieutenant General John Lesesne DeWitt
 * 102nd Radio Intelligence Signals Company at Fort Ord
 * 202nd Signals Depot at Fort Lewis
 * 11th Cavalry Regiment (Horse) at Camp Seeley
 * 153rd Seperate Infantry Regiment
 * 1st (Reinforced) Battalion, 87th Mountain Infantry Regiment at Fort Lewis
 * 74th Field Artillery Regiment at Fort Ord
 * 75th Field Artillery Regiment at Fort Ord
 * 76th Field Artillery Regiment at Fort Ord
 * 103rd Tank Destroyer Battalion at Fort Lewis
 * 47th General Service Engineer Regiment at Fort Ord
 * 29th Camouflage Engineer Battalion in Portland
 * 90th Heavy Pontoon Engineer Battalion at Fort Lewis
 * 73rd Pontoon Engineer Company at Fort Lewis
 * 391st Engineer Depot at Fort Ord
 * 524th Military Police Battalion at Camp Sibert

Anti-Aircraft Assets

 * 63rd Coast Artillery Regiment (Anti-Aircraft) at Fort MacArthur
 * 121st Coast Artillery Battalion (Anti-Aircraft) at Camp Haan
 * 37th Coast Artillery Anti-Aircraft Brigade
 * Brigade Headquarters at Camp Haan under Brigadier General Leroy Lutes
 * 65th Coast Artillery Regiment (Anti-Aircraft) in Los Angeles
 * 78th Coast Artillery Regiment (Anti-Aircraft) at Fort MacArthur
 * 205th Coast Artillery Regiment (Anti-Aircraft) at Fort Lewis
 * 101st Coast Artillery Anti-Aircraft Brigade
 * Brigade Headquarters at Camp Haan under Brigadier General Donald Brandt Robinson
 * 206th Coast Artillery Regiment (Anti-Aircraft) at Camp Murray
 * 216th Coast Artillery Regiment (Anti-Aircraft) in San Francisco
 * 217th Coast Artillery Regiment (Anti-Aircraft) in Oakland-Berkeley

Quartermaster Assets

 * Transportation Assets
 * K Company, 23rd Quartermaster Regiment at Fort Francis W. Warren
 * 1st Battalion, 47th Quartermaster Regiment (-B and C Companies) at Fort Ord
 * B Company, 47th Quartermaster Regiment at Camp San Luis Obispo
 * C Company, 47th Quartermaster Regiment at Camp Haan
 * 2nd Battalion, 47th Quartermaster Regiment (-H Company) at Fort Lewis
 * Heavy Maintenance Assets
 * 1st Battalion, 58th Quartermaster Regiment (-C and D Companies) at Fort Lewis
 * C Company, 58th Quartermaster Regiment in the Presidio of San Francisco
 * 2nd Battalion, 58th Quartermaster Regiment at Port Stockton
 * G Company, 58th Quartermaster Regiment at Camp Haan
 * Light Maintenance Assets
 * Headquarters and Headquarters Detachment, 67th Quartermaster Battalion and C Company at Fort Ord
 * B Company, 67th Quartermaster Battalion in the Presidio of San Francisco
 * D Company, 67th Quartermaster Battalion at Camp Haan
 * Headquarters and Headquarters Detachment, 73rd Quartermaster Battalion and A and D Companies at Fort Lewis
 * A Company, 83rd Quartermaster Battalion at Camp Roberts
 * Depot Assets
 * C Company, 97th Quartermaster Battalion (Bakery) at Fort Ord
 * A Company, 98th Quartermaster Battalion (Bakery) in the Presidio of San Francisco
 * A Company, 204th Quartermaster Battalion (Gasoline Supply) at Fort Ord
 * B Company, 204th Quartermaster Battalion (Gasoline Supply) at Fort Lewis
 * 2nd Platoon, 21st Quartermaster Company (Car) at Fort Lewis
 * 2nd Platoon, 22nd Quartermaster Company (Car) at Fort Ord
 * 79th Depot Supply Quartermasters at Fort Ord
 * 89th Railhead Quartermaster Company at Fort Lewis
 * 68th Pack Quartermasters Depot at Fort Ord

Ordnance Assets

 * 44th Maintenance and Supply Ordnance Battalion in the Presidio of San Francisco
 * 55th Ammunition Ordnance Company at Fort Lewis

Medical Assets

 * 1st Medical Regiment at Fort Ord
 * 53rd Evacuation Hospital at Camp San Luis Obispo
 * 68th Evacuation Hospital at Fort Lewis
 * 7th Surgical Hospital at Fort Ord
 * 48th Surgical Hospital at Fort Francis W. Warren
 * 74th Surgical Hospital at Fort Francis W. Warren
 * 203rd General Hospital at Fort Lewis
 * 26th Station Hospital at Camp San Luis Obispo
 * 153rd Station Hospital at Camp Roberts
 * 155th Station Hospital at Camp Roberts
 * 166th Station Hospital at Camp Callan
 * 3rd Platoon, 1st Veterinary Company at Fort Ord

9th Coast Artillery District

 * District Headquarters in the Presidio of San Francisco under Major General Walter King Wilson
 * Harbor Defenses of the Columbia River
 * Harbour Defence Headquarters at Fort Stevens
 * Harbour Defence Control Post at Fort Canby
 * 18th Harbor Defence Regiment (Type B)
 * 249th Harbor Defence Regiment (Type A)
 * No.1 and No.2 Mine Batteries
 * No.1 - 3 AA Batteries
 * Fort Canby (Gun Battery and Mortar Battery)
 * Fort Stevens (Mortar Battery and 4 Gun Batteries)
 * Fort Columbia (Gun Battery)
 * Harbor Defenses of Los Angeles
 * Harbour Defence Headquarters at Fort MacArthur
 * 3rd Harbor Defense Regiment (Type A)
 * 7 AA Batteries
 * Fort MacArthur (2 Mortar Batteries, 6 Gun Batteries, Railway Gun Battery)
 * Manhattan Beach (Railway Gun Battery)
 * Harbor Defenses of Puget Sound
 * Harbour Defence Headquarters at Fort Worden
 * Harbour Entrance Control Post at Fort Worden
 * 14th Harbor Defense Regiment (Type A)
 * 248th Harbor Defense Regiment (Type A)
 * Fort Casey (4 Gun Batteries and 2 Mortar Batteries)
 * Fort Flagler (4 Gun Batteries and Mortar Battery)
 * Fort Worden (8 Gun Batteries, 2 Mortar Batteries, and 2 Railway Gun Batteries)
 * Harbor Defenses of San Diego
 * Harbour Defence Headquarters at Fort Rosecrans
 * 19th Harbor Defense Regiment (Type A)
 * No.1 - 3 AA Batteries
 * Fort Rosecrans (7 Gun Batteries, 2 Mortar Batteries, Railway Gun Battery, 2 Marine Practice Batteries)
 * Harbor Defenses of San Francisco
 * Harbour Defence Headquarters at Fort Winfield Scott
 * Harbour Entrance Control Post at Fort Winfield Scott
 * 6th Harbor Defense Regiment (Type C)
 * 56th Harbor Defense Regiment (Type D) at Fort Cronkhite
 * 2nd Battalion, 18th Coast Artillery Regiment at Fort Funston
 * No.1-4 AA Batteries
 * No.1 and No.2 Mine Batteries
 * One USAMP Battery at Fort Baker
 * Fort Barry (6 Gun Batteries and Mortar Battery)
 * Fort Baker (2 Gun Batteries)
 * Fort Cronkhite (Gun Battery)
 * Fort Funston (2 Gun Batteries and Mortar Battery)
 * Fort Miley (2 Mortar Batteries and Gun Battery)
 * Fort Winfield Scott (5 Gun Batteries and 2 Mortar Batteries)

III Corps

 * Corps Headquarters in the Presidio of Monterrey under Major General Joseph Warren Stilwell
 * III Corps Special Troops Company
 * 54th Signal Battalion at Ford Ord
 * 19th Combat Engineer Regiment at Fort Ord
 * 3rd Maintenance Ordnance Battalion in the Presidio of Monterrey
 * 57th Medical Regiment at Ford Ord
 * 26th Field Artillery Brigade
 * 30th Medium Field Artillery Regiment at Camp Roberts
 * 40th Medium Field Artillery Regiment at Camp Roberts

7th "Bayonet" Infantry Division

 * Divisional Headquarters at Fort Ord under Major General Charles White
 * Special Troops Battalion
 * Headquarters and Headquarters Company in Lincoln
 * 7th Signals Company in St Paul
 * 7th Light Tank Company at Fort Snelling
 * 7th Maintenance Ordnance Company in St Paul
 * 7th Military Police Company
 * 13th Infantry Brigade
 * Brigade Headquarters in Minneapolis
 * 53rd Infantry Regiment
 * 54th Infantry Regiment in Omaha
 * 14th Infantry Brigade
 * Brigade Headquarters at Fort Snelling
 * 3rd Infantry Regiment
 * 17th Infantry Regiment at Fort Crook
 * 7th Field Artillery Brigade
 * Brigade Headquarters in Sioux City
 * 14th Field Artillery Regiment at Fort Snelling
 * 79th Field Artillery Regiment
 * 80th Field Artillery Regiment
 * 7th Ammunition Train
 * 5th Engineer Regiment at Fort Belvoir
 * 7th Quartermaster Regiment at Fort Leavenworth
 * 7th Medical Regiment in St Paul

40th "Sunburst" Infantry Division

 * Divisional Headquarters at Camp San Luis Obispo under Major General Earnest Dawley (California, Utah, and Nevada National Guards)
 * Special Troops Battalion
 * Headquarters in Berkeley
 * Headquarters Company in Los Angeles
 * 40th Signals Company in San Francisco
 * 40th Light Tank Company in Salinas
 * 115th Maintenance Ordnance Company in Odgen
 * 40th Military Police Company in Reno
 * 79th Infantry Brigade
 * Brigade Headquarters in Sacramento
 * 159th Infantry Regiment in Oakland
 * 184th Infantry Regiment
 * 80th Infantry Brigade
 * Brigade Headquarters in Los Angeles
 * 160th Infantry Regiment
 * 185th Infantry Regiment in Fresno
 * 65th Field Artillery Brigade
 * Brigade Headquarters in Salt Lake City
 * 143rd Field Artillery Regiment in Stockton
 * 145th Field Artillery Regiment
 * 222nd Field Artillery Regiment
 * 115th Ammunition Train
 * 115th Engineer Regiment in Salt Lake City
 * 115th Quartermaster Regiment in Berkeley
 * 115th Medical Regiment

IX Corps

 * Corps Headquarters at Fort Lewis under Major General Kenyon Ashe Joyce
 * IX Corps Special Troops Company
 * 60th Signal Battalion
 * 115th Cavalry Regiment (Horse and Mechanized)
 * 99th Tank Destroyer Battalion
 * 18th Combat Engineer Regiment at Vancouver Barracks
 * 69th Topographic Engineer Company
 * 9th Maintenance Ordnance Battalion
 * 209th Military Police Company
 * 56th Medical Battalion
 * 76th Field Artillery Brigade
 * Brigade Headquarters and Headquarters Battery at Fort Frances E. Warren under Brigadier General Lloyd Edmonstone Jones
 * 183rd Medium Field Artillery Regiment at Fort Lewis
 * 188th Medium Field Artillery Regiment
 * 144th Heavy Field Artillery Regiment

3rd "Marne" Infantry Division

 * Divisional Headquarters at Fort Lewis under Major General John Lucas
 * Special Troops Battalion
 * Headquarters and Headquarters Company at Fort Lewis
 * 3rd Signal Company
 * 3rd Light Tank Company
 * 3rd Maintenance Ordnance Company
 * 3rd Military Police Company
 * 5th Infantry Brigade
 * Brigade Headquarters at Vancouver Barracks
 * 4th Infantry Regiment at Fort George Wright
 * 7th Infantry Regiment
 * 6th Infantry Brigade
 * Brigade Headquarters at Fort Douglas
 * 30th Infantry Regiment in the Presidio of San Francisco
 * 38th Infantry Regiment
 * 3rd Field Artillery Brigade
 * Brigade Headquarters at Fort Lewis
 * 9th Field Artillery Regiment
 * 10th Field Artillery Regiment
 * 76th Field Artillery Regiment at Fort D. A. Russell
 * 3rd Ammunition Train
 * 6th Engineer Regiment at Fort Lawton
 * 3rd Quartermaster Regiment
 * 3rd Medical Regiment

41st "Sunset" Infantry Division

 * Divisional Headquarters at Fort Lewis under Major General Carlos Alden Penington (Oregon, Washington, Montana, Idaho, and Wyoming National Guard)
 * Special Troops Battalion
 * Headquarters in Centralia
 * Headquarters Company at Green River
 * 41st Signal Company in Portland
 * 41st Light Tank Company
 * 116th Maintenance Ordnance Company in Jerome
 * 41st Military Police Company at Green River
 * 81st Infantry Brigade
 * Brigade Headquarters at Camp Murray
 * 161st Infantry Regiment in Spokane
 * 163rd Infantry Regiment in Whitefish
 * 82nd Infantry Brigade
 * Brigade Headquarters in Portland
 * 162nd Infantry Regiment
 * 186th Infantry Regiment
 * 66th Field Artillery Brigade
 * Brigade Headquarters in Seattle
 * 146th Field Artillery Regiment
 * 148th Field Artillery Regiment in Tacoma
 * 218th Field Artillery Regiment in Portland
 * 116th Ammunition Train
 * 116th Engineer Regiment in Boise
 * 116th Quartermaster Regiment in Seattle
 * 116th Medical Regiment in Seattle

Alaska Defense Command

 * Command Headquarters at Fort Richardson under Brigadier General Simon Bolivar Buckner Jr.
 * Alaska Finance Office in Anchorage
 * Alaska Signals Detachment at Chilkoot Barracks
 * B Company, 194th Tank Battalion
 * 4th Separate Infantry Regiment (1 Company at Ladd Field)
 * 37th Separate Infantry Regiment at Fort Greely (2 Companies, at Fort Mears and Fort Raymond)
 * 201st Separate Infantry Regiment at Fort Greely (1 Battalion at Fort Raymond)
 * 1st and 3rd Battalions, 153rd Separate Infantry Regiment at Fort Raymond (3 Companies, at Annete Island, Nome, and Yakutat Air Base)
 * 1st Battalion, 297th Separate Infantry Regiment at Fort Richardson (A and B Companies at Chilkoot Barracks)
 * 81st Medium Field Artillery Battalion
 * 98th Field Artillery Battalion at Fort Greely
 * 75th Coast Artillery Regiment (Anti-Aircraft) (Semimobile)
 * 215th Coast Artillery Regiment (Semimobile) at Fort Greely
 * 250th Coast Artillery Regiment (Harbour Defence) at Fort Mears (1 Battalion at Fort Richardson, 2 Batteries at Fort Raymond)
 * USAJMP Company at Chilkoot Barracks
 * 1st Battalion, 205th Coast Artillery Regiment at Fort Raymond
 * 1st Battalion, 206th Coast Artillery Regiment at Fort Mears (1 Battery at Fort Ray)
 * 1st Battalion, 151st Combat Engineer Regiment at Fort Greely (3 Companies and 1 Platoon seperated at: Fort Mears, Fort Raymond (2), and Ladd Field)
 * 32nd Separate Engineer Company
 * 4th Ordnance Company (Medium Maintenance)
 * A Company, 69th Quartermaster Battalion at Fort Greely with detachment at Fort Richardson
 * Attached Company from 23rd Quartermaster Regiment at Fort Richardson
 * Alaska Quartermaster Depot at Chilkoot Barracks
 * 7 Station Complements at: Chilkoot Barracks, Fort Greely, Fort Mears, Fort Raymond, Fort Richardson, Nome)

Armoured Force

 * Headquarters at Fort Knox

1st Armored Corps

 * Headquarters at Fort Knox
 * 1st Armoured Signal Battalion
 * 2nd Armoured Signal Battalion at Camp Polk
 * 83rd Heavy Maintenance Ordnance Company at Fort Lewis
 * 85th Heavy Maintenance Ordnance Company at Camp Bowie
 * 73rd Depot Ordnance Company at Fort Knox
 * 1st Tank Group
 * Headquarters Squadron at Fort George G. Meade
 * 70th Medium Armoured Battalion
 * 191st Light Armoured Battalion
 * 193rd Light Armoured Battalion at Fort Benning
 * 751st Medium Armoured Battalion at Fort Knox
 * 752nd Medium Armoured Battalion at Fort Lewis
 * 753rd Medium Armoured Battalion at Camp Polk
 * 754th Medium Armoured Battalion at Pine Camp
 * 755th Medium Armoured Battalion at Camp Bowie
 * 756th Light Armoured Battalion at Fort Lewis
 * 757th Light Armoured Battalion at Fort Ord
 * 758th (Coloured) Light Armoured Battalion at Camp Claiborne
 * 759th Light Armoured Battalion at Fort Bliss
 * 760th Light Armoured Battalion at Camp Bowie

1st Armoured Division

 * Headquarters at Fort Knox under Major General Bruce Magruder
 * Headquarters Company and Military Police Platoon
 * 81st Armoured Reconnaissance Battalion
 * 1st Armoured Brigade
 * 1st Light Armoured Regiment
 * 13th Light Armoured Regiment
 * 69th Medium Armoured Regiment
 * 68th Self-Propelled Artillery Regiment
 * 6th (Mechanized) Infantry Regiment
 * 27th Field Artillery Regiment
 * 16th Armoured Engineer Battalion
 * 15th Quartermaster Battalion
 * 13th Armoured Maintenance Battalion
 * 141st Armoured Signal Company
 * 47th Field Hospital Battalion

2nd Armoured Division

 * Headquarters at Fort Benning under Major General George Patton
 * Headquarters Company and Military Police Platoon
 * 82nd Armuored Reconnaissance Battalion
 * 2nd Armoured Brigade
 * 66th Light Armoured Regiment
 * 68th Light Armored Regiment
 * 67th Medium Armored Regiment
 * 14th Self-Propelled Artillery Regiment
 * 41st (Mechanized) Infantry Regiment
 * 78th Field Artillery Regiment
 * 17th Armoured Engineer Battalion
 * 14th Quartermaster Battalion
 * 17th Armoured Maintenance Battalion
 * 142nd Armoured Signal Company
 * 48th Field Hospital Battalion

3rd Armoured Division

 * Headquarters at Camp Polk under Major General Alvan Cullom Gillem Jr.
 * Headquarters Company and Military Police Platoon
 * 83rd Armored Reconnaissance Battalion
 * 3rd Armoured Brigade
 * 32nd Light Armoured Regiment
 * 33rd Light Armoured Regiment
 * 47th Medium Armoured Regiment
 * 67th Self-Propelled Artillery Regiment
 * 36th (Mechanized) Infantry Regiment
 * 54th Field Artillery Regiment
 * 23rd Armoured Engineer Battalion
 * 15th Quartermaster Battalion
 * 18th Armoured Maintenance Battalion
 * 143rd Armoured Signal Company
 * 45th Field Hospital Battalion

4th Armoured Division

 * Headquarters at Fort Benning under Major General George Patton
 * Headquarters Company and Military Police Platoon
 * 84th Armoured Reconnaissance Battalion
 * 4th Armoured Brigade
 * 35th Light Armoured Regiment
 * 37th Light Armoured Regiment
 * 80th Medium Armoured Regiment
 * 66th Self-Propelled Artillery Regiment
 * 51st (Mechanized) Infantry Regiment
 * 22nd Field Artillery Regiment
 * 24th Combat Engineer Battalion
 * 18th Quartermaster Battalion
 * 20th Armoured Maintenance Battalion
 * 144th Armoured Signal Squadron
 * 46th Field Hospital Battalion

5th Armoured Division

 * Headquarters at Fort Benning under Major General George Patton
 * Headquarters Company and Military Police Platoon
 * 85th Armoured Reconnaissance Battalion
 * 5th Armoured Brigade
 * 31st Light Armoured Regiment
 * 34th Light Armoured Regiment
 * 81st Medium Armoured Regiment
 * 65th Self-Propelled Artillery Regiment
 * 46th (Mechanized) Infantry Regiment
 * 58th Field Artillery Regiment
 * 22nd Armoured Engineer Battalion
 * 19th Quartermaster Battalion
 * 21st Armoured Maintenance Battalion
 * 145th Armoured Signal Squadron
 * 75th Field Hospital Battalion

Caribbean Defense Command
The Caribbean Defence Command controlled the army units based on the us controlled areas including: Panama Canal Zone, Puerto Rico, Antigua, Jamaica, United States Virgin Islands, Trinidad and Tobago, St Lucia, British Guiana, and Netherlands Guyana.

Panama Sector
The Panama Sector only controlled units based throughout Panama. It was subdivided into the Panama Canal Department.
 * Sector and Department Headquarters at Quarry Heights under Lieutenant General Frank Maxwell Andrews
 * 11th Service Signals Company
 * Panama Aircraft Warning Signal Company at Fort Clayton
 * Panama Guard Service Company at Post of Cozal
 * 6th Truck Quartermaster Company at Post of Cozal
 * 7th Truck Quartermaster Company at Fort William D Davis
 * 8th Truck Quartermaster Company at Post of Cozal
 * 31st Light Maintenance Quartermaster Company at Fort William D Davis
 * 37th Light Maintenance Quartermaster Company at Post of Cozal
 * 10th Medium Maintenance Ordnance Company at Post of Cozal
 * 20th Medium Maintenance Ordnance Company at Fort DeLessups
 * 41st Heavy Maintenance Quartermaster Company at Post of Cozal
 * 71st Quartermaster Depot (Bakery) at Post of Cozal
 * Panama Atlantic General Depot at Fort William D Davis
 * Panama Pacific General Depot at Post of Cozal
 * 19th Military Police Company at Fort DeLessups
 * 20th Military Police Company
 * 3rd Collection Veterinary Company at Post of Cozal
 * 1st Separate Pack Chemical Company at Post of Cozal

Panama Coast Artillery Command

 * Command Headquarters at Quarry Heights under Major General William Edgar Shed
 * Atlantic Coast Artillery Brigade
 * Brigade Headquarters at Fort Sherman under Brigadier General Homer Ray Oldfield
 * 72nd Coast Artillery Regiment (AA) at Fort Randolph
 * 82nd Coast Artillery Regiment (AA), 1st Battalion at Fort Sherman rest at Fort Randolph
 * Harbour Defences of Colon
 * Headquarters at Fort Sherman
 * Harbour Defence Headquarters at Fort Randolph
 * 1st Harbor Defense Artillery Regiment (Type C) (3rd Battalion at Fort Randolph)
 * USAMP Battery at Fort Randolph
 * 2 USAJMP Batteries
 * 3 Mining Batteries
 * Fort De Lesseps (Gun Battery)
 * Fort Randolph (12 Gun Batteries, 2 Mortar Batteries, Railway Gun Battery)
 * Fort Sherman (7 Gun Batteries, 2 Mortar Batteries, 2 AA Gun Batteries)
 * Pacific Coast Artillery Brigade
 * Harbour Defence Headquarters at Fort Amador under Colonel F. A. Mountford
 * 73rd Coast Artillery Regiment (AA)
 * 83rd Coast Artillery Regiment (AA) at Fort Kobbe
 * Harbour Defences of Balboa
 * Headquarters at Fort Amador under Colonel E. E. Bennett
 * 4th Harbour Defence Artillery Regiment (Type C)
 * USAMP Battery
 * USAJMP Battery
 * 3 Mining Batteries
 * Fort Amador (3 Gun Batteries)
 * Fort Grant (14 Gun Batteries, 3 Mortar Batteries, Railway Gun Battery, AA Battery, Searchlight Battery)
 * Fort Kobbe (4 Gun Batteries and Searchlight Battery)

Panama Mobile Force

 * Divisional Headquarters at Fort Clayton under Major General Walter Evans Prosser
 * Headquarters Company
 * 10th Signal Company at Fort Amador
 * 1st Cavalry Reconnaissance Troop at Fort William D Davis
 * 10th Maintenance Ordnance Company
 * 19th Military Police Company
 * 1st Separate Chemical Company in Corozal
 * 5th Infantry Regiment at Camp Paraiso
 * 13th Infantry Regiment at Fort William D Davis
 * 14th Infantry Regiment at Fort William D Davis
 * 33rd Infantry Regiment
 * 1st Battalion, 2nd Field Artillery Regiment
 * 1st Battalion, 87th Field Artillery Regiment at Fort William D Davis
 * 11th Engineer Regiment
 * 61st Separate Pack Quartermaster Troop at Fort William D Davis
 * 62nd Separate Pack Quartermaster Troop
 * 5th Medical Company in Corozal
 * 3rd Veterinary Company in Corozal

Puerto Rico Sector
The Puerto Rico sector not only controlled the units on the island of Puerto Rico but also the islands of Antigua, Jamaica Defence Force, and St Croix.
 * Sector Headquarters in San Juan under Major General James Lawton Collins
 * Antigua Base Command and Coolidge Field (E Company, 434th Infantry Regiment)
 * Vernam Field (E Company, 89th Infantry Regiment)

Puerto Rico Department

 * Department Headquarters in San Juan under Major General James Lawton Collins
 * Puerto Rico Aircraft Warning Signal Company in San Juan
 * 12th Service Signal Company in San Juan
 * 65th Seperate Infantry Regiment (Puerto Rican) at Fort Buchanan (1st Battalion at Boriquen Field)
 * 1st Battalion, 162nd Field Artillery Regiment at Henry Barracks
 * 25th Field Artillery Battalion at Henry Barracks
 * 1st Battalion, 130th Combat Engineer Regiment at Fort Buchanan
 * 27th Combat Engineer Battalion at Fort Buchanan
 * Puerto Rico Construction Quartermaster Department in San Juan
 * 51st Truck Quartermaster Battalion at Fort Buchanan (B Company at Camp Tortugero)
 * 245th Service Quartermaster Depot Battalion at Fort Buchanan (B Company at Camp Tortugero)
 * 26th Light Maintenance Quartermaster Company at Fort Buchanan
 * 44th Light Maintenance Quartermaster Company at Henry Barracks
 * 33rd Medium Maintenance Ordnance Company at Fort Buchanan
 * 45th Heavy Maintenance Quartermaster Company at Fort Buchanan
 * 42nd Ammunition Ordnance Company at Fort Buchanan
 * 76th Ordnance Depot at Fort Buchanan
 * Puerto Rico General Quartermaster Depot at Fort Buchanan
 * Organised Reserves, Puerto Rico Department
 * District Engineer
 * 3 Station Complements at Henry Barracks, Fort Buchanan, and Camp Tortugero.
 * Bakers and Cooks School at Fort Buchanan
 * 92nd Separate Infantry Brigade
 * Brigade Headquarters at Camp Tortugere under Brigadier General Luis Raul Esteves
 * 295th Infantry Regiment (Puerto Rican)
 * 296th Infantry Regiment (Puerto Rican)
 * Harbour Defences of San Juan
 * Harbour Defence Headquarters at San Juan Military Reservation
 * 1st Battalion, 51st Coast Artillery Regiment
 * 1st Battalion, 253rd Coast Artillery Regiment
 * 2nd Battalion, 69th Coast Artillery Regiment (AA)
 * 123rd Separate Coast Artillery Anti-Aircraft Battalion
 * Aguada Battery (4 155mm Guns)
 * Algarrobe Battery (4 155mm Guns)
 * Ponce Battery (4 155mm Guns)
 * Barinquem East Battery (2 155mm Guns)
 * Borinquem West Battery (2 155mm Guns)
 * San Juan Military Reservation (5 Gun Batteries)
 * Punta Salinas Military Reservation (4 Gun Batteries)
 * Cabras Island Military Reservation (2 Gun Batteries)

Trinidad Sector
The Trinidad Sector controlled the units based in: Trinidad and Tobago, St Lucia, British Guiana, and Dutch Guyana.
 * Sector Headquarters at Fort Read under Brigadier General Ralph Talbot Jr
 * Trinidad Base Command
 * Base Headquarters at Fort Read under Brigadier General Ralph Talbot Jr
 * 22nd Service Signal Company
 * Attached Company from 11th Infantry Regiment
 * 2nd Battalion, 252nd Coast Artillery Regiment
 * L Company, 23rd Quartermaster Regiment
 * 23rd Medium Maintenance Ordnance Company
 * 807th Military Police Company
 * St. Lucia Base Command and Beane Field
 * Base Comand at Beane Field
 * I Company, 434th Infantry Regiment
 * British Guiana Base Command and Atkinson Field
 * Base Command at
 * A Company, 434th Infantry Regiment
 * Zandery Field
 * Base and Field Command at Zandery Field
 * 1st Battalion, 33rd Infantry Regiment

Iceland Base Command
The Iceland Base Command controlled both army and marine units based on the island of Iceland. The Marines are shown here only for convenience, but keep note that the marines are separate from the army and are under the Department of the Navy.
 * Base Command at Camp Pershing under Major General Charles Hartwell Bonesteel
 * 556th Aircraft Warning Signal Battalion
 * Detachment form 161st Photo Signal Company
 * Detachment from 175th Repair Signal Company
 * Detachment from 201st Signal Company (Depot)
 * 10th Infantry Regiment (-2nd Battalion)
 * 46th Field Artillery Battalion
 * 5th Combat Engineer Regiment
 * Depot Detachment from 394th Engineer Company
 * Platoon from E Company, 23rd Quartermaster Regiment
 * Detachment from 50th Ammunition Ordnance Company
 * Detachment from 72nd Ordnance Company (Depot)
 * D Company, 66th Quartermaster Battalion (Light Maintenance)
 * B Company, 61st Quartermaster Battalion (Laundry Depot)
 * Attached Company from 392nd Quartermaster Battalion (Port Depot)
 * Detachment from 56th Quartermaster Company (Sales Commisary)
 * Detachment from 80th Quartermaster Company (Depot Supply)
 * Detachment from 215th Quartermaster Company (Mobile Shoe Repair)
 * Detachment from 34th Medium Maintenance Ordnance Company
 * 11th Station Hospital
 * 167th Station Hospital
 * 168th Station Hospital
 * Detachment from 4th Medical Depot
 * 1st Provisional Marine Brigade (US Marines, NOT Army)
 * Brigade Headquarters in Alafos under Brigadier General John Marston VI
 * 1st Provisional Marine Brigade Band
 * 3rd Platoon, 1st Scout Company
 * A Company, 2nd Tank Battalion
 * 6th Marine Infantry Regiment
 * 4th Battalion, 10th Marine Artillery Regiment
 * 5th Marine Defense Battalion (-Seacoast Group)
 * C Company, 1st Engineer Battalion
 * 1st Platoon, A Company, 2nd Service Battalion Depot
 * 2 Provisional Bakery Depots (Ad Hoc units)
 * A Company, 2nd Medical Battalion
 * Provisional Chemical Platoon (Ad Hoc unit)
 * RAF Reykjavik
 * Iceland Air Warning Signal Battalion
 * Station Complement (Sales Commissary Depot Platoon, Finance Depot Platoon, Station Hospital Platoon)

Greenland Base Command

 * Base Command Headquarters in Narsarssuak under Colonel Benjamin Franklin Giles
 * Greenland Aircraft Warning Signal Company
 * Platoon from 23rd Service Signal Company
 * Battery from 62nd Coast Artillery Regiment (AA)
 * Company from 42nd General Service Engineer Regiment

Newfoundland Base Command

 * Base Command Headquarters at Fort Pepperall under Major General Gerald Clark Brant
 * 21st Service Signal Company
 * 122nd Radio Intelligence Signal Platoon
 * 3rd Battalion, 3rd Separate Infantry Regiment
 * 58th Combat Engineer Company
 * Attached Platoon from 805th Military Police Company
 * Harbour Defences of Argentia and St John's
 * Harbour Defence Headquarters Company
 * 421st Composite Anti-Aircraft Battalion
 * D Battery, 52nd Coast Artillery Regiment (Railway)
 * C Battery, 57th Coast Artillery Regiment (155mm Guns)
 * Newfoundland Airport
 * Newfoundland Air Warning Signal Company
 * Station Complement (Sales Commissary Depot Platoon, Finance Depot Platoon, Station Hospital Platoon)

Bermuda Base Command

 * Base Command Headquarters at Fort Bell under Brigadier General Alden George Strong
 * 23rd Service Signal Company
 * Attached Company from the 11th Infantry Regiment
 * I Company, 89th Infantry Regiment
 * L Company, 89th Infantry Regiment
 * Attached Company from 806th Military Police Company
 * Harbour Defences of Bermuda
 * Harbour Defence Headquarters at Fort Bell under Brigadier General Alden George Strong
 * F Battery, 52nd Coast Artillery Regiment (Railway)
 * B Battery, 57th Coast Artillery Regiment (155mm Gun)
 * Fort Bell (2 Gun Batteries and 2 Railway Batteries)

Washington Provisional Brigade

 * Brigade Headquarters and Headquarters Company at Marine Barracks, Washington, D.C. under Brigadier General Albert Lyman Cox
 * 3rd Cavalry Regiment (Horse) at Fort Myer
 * C Battery, 55th Field Artillery Battalion (Horse Artillery) at Fort Myer
 * 703rd Zone of Interior Military Police Battalion in the Arlington Cantonment

Hawaiian Department
The Hawaiian Department controlled the units based throughout the islands in the Territory of Hawaii.
 * Department Headquarters at Fort Shafter under Lieutenant General Walter Short
 * Hawaiian Military District
 * Maui Military District
 * Kauai Military District
 * 2nd Service Signal Battalion at Hickam Field
 * 53rd Maintenance Signal Company at Hickam Field
 * 11th Light Tank Company at Schofield Barracks
 * 34th Combat Engineer Regiment at Schofield Barracks
 * 1st Provisional Truck Quartermaster Company at Fort Armstrong
 * 2nd Provisional Truck Quartermaster Company at Fort Armstrong
 * Hawaiian Quartermaster Pack Train at Schofield Barracks
 * 72nd Bakery Quartermaster Depot at Schofield Barracks
 * A Company, 295th Quartermaster Battalion at Fort Armstrong
 * 32nd Separate Light Maintenance Quartermaster Company at Fort Armstrong
 * 33rd Separate Light Maintenance Quartermaster Company at Schofield Barracks
 * 11th Medium Maintenance Ordnance Company at Schofield Barracks
 * B Company, 90th Quartermaster Battalion (Heavy Maintenance) at Fort Armstrong
 * Hawaiian Ordnance Depot
 * Hawaiian Military Police Company
 * A Company, 1st Chemical Battalion at Schofield Barracks
 * Hawaiian Quartermaster Depot at Fort Armstrong
 * Hawaiian Medical Depot at Fort Shafter
 * Hawaiian Chemical Depot at Schofield Barracks
 * Hawaiian Veterinary Depot at the Hawaiian Ordnance Depot
 * Tripler General Hospital at Fort Shafter
 * Finance Office in Honolulu
 * Office of the District Engineer in Honolulu
 * School for Bakers and Cooks at Schofield Barracks
 * School for Farriers and Horseshoers at Schofield Barracks
 * 4 Station Complements at Fort Armstrong, Fort Kamehameha, Fort Shafter, and Schofield Barracks
 * Reception Center at Schofield Barracks

Hawaiian Coast Artillery Command

 * Command Headquarters at Fort DeRussey under Major General H. T. Burgin
 * 53rd Coast Artillery Anti-Aircraft Brigade
 * Brigade Headquarters and Headquarters Battery at Fort Shafter under Major General H. T. Burgin
 * 64th Coast Artillery Regiment (AA) at Fort Shafter
 * 97th Coast Artillery Regiment (AA) (-B, C, D, E Batteries and 3rd Batt.) at Schofield Barracks (Detachments at Fort Barrette, Fort Kamehama, and Fort Weaver)
 * 98th Coast Artillery Regiment (AA) (-3rd Batt. and E Battery) at Schofield Barracks
 * 251st Coast Artillery Regiment (AA) (Mobile) (-1 Batt.) at Camp Malakole

Harbour Defences of Honolulu

 * Harbour Defence Headquarters at Fort DeRussey
 * 16th Harbor Defense Regiment (Type B) at Fort Ruger
 * 2nd Battalion, 55th Harbor Defense Regiment (155mm Guns)
 * Fort Armstrong (Gun Battery)
 * Fort DeRussey (2 Gun Batteries and AA Battery)
 * Fort Fuger (Gun Battery)
 * Fort Ruger (2 Mortar Batteries, Gun Battery, and AA Battery)
 * Kaawa (Gun Battery)
 * Koko Head (Gun Battery)
 * Sand Island (Gun Battery and AA Battery)
 * Ulupao (Gun Battery)
 * Waimanalo (Gun Battery)

Harbour Defences of Pearl Harbour

 * Harbour Defence Headquarters at Fort Kamehameha
 * 15th Harbor Defense Regiment (Type B)
 * 1st Battalion, 41st Harbour Defence Regiment (Railway Guns)
 * 1st Battalion, 55th Harbor Defense Regiment (155mm Guns)
 * Barbers Point (Gun Battery)
 * Ford Island (2 Gun Batteries and AA Battery)
 * Fort Barrette (Gun Battery and AA Battery)
 * Fort Kamehameha (6 Gun Batteries, Mortar Battery, and AA Battery)
 * Fort Weaver (2 Gun Batteries)
 * Kahe (Railway Gun Battery)
 * Laie (Gun Battery)
 * Makua Valley (Gun Battery)
 * Pupukea (Gun Battery)

24th "Victory" Infantry Division

 * Divisional Headquarters and Headquarters and Military Police Company at Schofield Barracks under Major General Durward Saunders Wilson
 * 24th Signal Company
 * 19th Infantry Regiment
 * 21st Infantry Regiment
 * 299th Infantry Regiment (1st Batt. at Iolani Barracks 2nd Batt. at Hilo, 3rd Batt. at Wailuku, Companies seperated at; Barking Sands, Homestead Field, and two companies at Lihue)
 * 24th Divisional Artillery
 * Headquarters Battery
 * 11th Medium Artillery Battalion
 * 13th Field Artillery Battalion
 * 52nd Field Artillery Battalion
 * 63rd Field Artillery Battalion
 * 3rd Engineer Battalion
 * 24th Quartermaster Battalion
 * 24th Medical Battalion

25th "Tropic Lightning" Infantry Division

 * Divisional Headquarters and Headquarters and Military Police Company at Schofield Barracks under Major General Maxwell Murray
 * 25th Signal Company
 * 27th Infantry Regiment
 * 25th Infantry Regiment
 * 298th Infantry Regiment
 * 25th Divisional Artillery
 * 8th Field Artillery Battalion
 * 64th Field Artillery Battalion
 * 89th Field Artillery Battalion
 * 90th Medium Field Artillery Battalion
 * 65th Engineer Battalion
 * 25th Quartermaster Battalion
 * 25th Medical Battalion

United States Army Forces in the Far East

 * Forces Headquarters at the Post of Manila under Lieutenant General Douglas MacArthur

Philippine Department

 * Department Headquarters and Headquarters Company at Post of Manila under Lieutenant General Douglas MacArthur
 * Finance Office at Fort Santiago
 * Platoon Detachment from 2nd Service Signal Company
 * Platoon Detachment from 10th Service Signal Company
 * 228th Operations Signal Company
 * 252nd Signal Construction Company at Fort William McKinley
 * Philippine Signal Depot at Fort Santiago
 * Philippine Engineer Department at Fort Santiago
 * 65th Separate Pack Quartermaster Company at Fort William McKinley
 * 66th Separate Pack Quartermaster Company at Fort Stotsenburg
 * 74th Bakery Quartermaster Depot at Fort William McKinley
 * Philippine Quartermaster General at Fort Santiago
 * Philippine Motor Transport Depot at Fort Santiago
 * 34th Separate Light Maintenance Quartermaster Company at Fort Santiago
 * 75th Ordnance Depot at Fort Santiago
 * Philippine Ordnance Depot at Fort Santiago
 * 4th Separate Chemical Company at Fort Mills
 * Philippine Chemical Depot at Fort Mills
 * School for Bakers and Cooks at Fort William McKinley
 * 808th Military Police Company
 * Sternberg General Hospital in Manila
 * Station Complement at Sternberg General Hospital
 * Station Hospital at Fort William McKinley
 * 4th Separate Veterinary Company at Fort William McKinley
 * Veterinary General Hospital at Fort Santiago
 * Station Complements at Camp John Hay, Fort Mills, Fort Santiago, Fort Stotsenburg, Fort William McKinley, Limay, Pettit Barracks, and Post of Manila

Philippine Coast Artillery Command

 * Coast Artillery Command Headquarters at Fort Mills under Colonel George Fleming Moore
 * 200th Coast Artillery Regiment (AA) (Mobile) at Fort Stotsenburg
 * Harbour Defences of Manila and Subic Bays
 * Harbour Defence Headquarters at Fort Mills under Colonel George Fleming Moore
 * 59th Coast Artillery Regiment (Heavy Tractor)
 * 91st Coast Artillery Regiment (PS)
 * 92nd Coast Artillery Regiment (PS, 155mm)
 * 60th Coast Artillery Regiment (AA)
 * USAMP Battery
 * USAJMP Battery in Manila Harbor
 * Fort Mills (21 Gun Batteries, 2 Mortar Batteries and, 2 AA Batteries)
 * Fort Drum (5 Gun Batteries)
 * Fort Frank (3 Gun Batteries and Mortar Battery)
 * Fort Hughes (6 Gun Batteries and Mortar Battery)
 * Fort Wint (5 Gun Batteries)

Reserve Force

 * 1st Tank Group
 * Group Headquarters at Fort Stotsenburg under Colonel James Roy Newman Weaver
 * 192nd Light Tank Battalion
 * 194th Light Tank Battalion
 * Attached Company from 17th Armored Ordnance Battalion (Maintenance)

Philippine Division

 * Divisional Headquarters at Fort William McKinley under Colonel Maxon Spafford Lough
 * Special Troops Battalion
 * Battalion Headquarters
 * Headquarters and Military Police Company
 * 31st Infantry Regiment