This is a list of historical
formations of the
United States Army
The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, ...
.
Units still in existence are in bold.
For specific eras:
*
*
Formations of the United States Army during World War I
*
Formations of the United States Army during World War II
*
Formations of the United States Army during the Vietnam War
*
Formations of the United States Army during the War on Terrorism
*
List of current formations of the United States Army
Army groups
*
1st Army Group (
World War II "
phantom" formation)
*
6th Army Group
*
12th Army Group
The Twelfth United States Army Group was the largest and most powerful United States Army formation ever to take to the field, commanding four field armies at its peak in 1945: First United States Army, Third United States Army, Ninth United Sta ...
*
15th Army Group
The 15th Army Group was an Army Group in World War II, composed of the British Eighth and the U.S. Fifth Armies, which apart from troops from the British Empire and U.S.A., also had whole units from other allied countries/regions; like two of ...
Field armies
*
First Allied Airborne Army
The First Allied Airborne Army was an Allied formation formed on 2 August 1944 by the order of General Dwight D. Eisenhower, the Supreme Allied Commander of the Allied Expeditionary Force. The formation was part of the Allied Expeditionary For ...
*
First United States Army
First Army is the oldest and longest-established field army of the United States Army. It served as a theater army, having seen service in both World War I and World War II, and supplied the US army with soldiers and equipment during the Kore ...
—U.S. Army Training, Readiness, and Mobilization command formation
*
Second United States Army—
United States Army Cyber Command
U.S. Army Cyber Command (ARCYBER) conducts information dominance and cyberspace operations as the Army service component command of United States Cyber Command.The official regulation, General Order (DA GO 2016-11) was signed by the Secretary of ...
*
Third United States Army
Third or 3rd may refer to:
Numbers
* 3rd, the ordinal form of the cardinal number 3
* , a fraction of one third
* 1⁄60 of a ''second'', or 1⁄3600 of a ''minute''
Places
* 3rd Street (disambiguation)
* Third Avenue (disambiguation)
* Hig ...
—
United States Army Central
The United States Army Central, formerly the Third United States Army, commonly referred to as the Third Army and as ARCENT, is a military formation of the United States Army which saw service in World War I and World War II, in the 1991 Gulf Wa ...
command formation
*
Fourth United States Army
*
Fifth United States Army
Fifth is the ordinal form of the number five.
Fifth or The Fifth may refer to:
* Fifth Amendment to the United States Constitution, as in the expression "pleading the Fifth"
* Fifth column, a political term
* Fifth disease, a contagious rash th ...
—
United States Army North
The United States Army North (ARNORTH) is a formation of the United States Army. An Army Service Component Command (ASCC) subordinate to United States Northern Command (NORTHCOM), ARNORTH is the joint force land component of NORTHCOM. command formation
*
Sixth United States Army
Sixth Army is a theater army of the United States Army. The Army service component command of United States Southern Command, its area of responsibility includes 31 countries and 15 areas of special sovereignty in Central and South America and t ...
—
United States Army South
United States Army South is an Army service component command of United States Southern Command whose area of responsibility includes 31 countries and 15 areas of special sovereignty in Central and South America and the Caribbean. It is headquar ...
command formation
*
Seventh United States Army
The Seventh Army was a United States army created during World War II that evolved into the United States Army Europe (USAREUR) during the 1950s and 1960s. It served in North Africa and Italy in the Mediterranean Theater of Operations and Fra ...
—
United States Army Europe
United States Army Europe and Africa (USAREUR-AF) is an Army Service Component Command (ASCC) /Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) and U.S. Africa Command (AFRICO ...
command formation
*
Eighth United States Army
The Eighth Army is a U.S. field army which is the commanding formation of all United States Army forces in South Korea. It commands U.S. and South Korean units and is headquartered at the Camp Humphreys,[United States Army Korea
The Eighth Army is a U.S. field army which is the commanding formation of all United States Army forces in South Korea. It commands U.S. and South Korean units and is headquartered at the Camp Humphreys,][Ninth United States Army
The Ninth Army is a field army of the United States Army, garrisoned at Caserma Ederle, Vicenza, Italy. It is the United States Army Service Component Command of United States Africa Command (USAFRICOM or AFRICOM).
Activated just eight weeks ...]
—
United States Army Africa
United States Army Africa (USARAF), also known as the ''Southern European Task Force'' (SETAF), was the United States Army service component command of United States Africa Command (USAFRICOM or AFRICOM).
USARAF's headquarters were located on ...
command formation
*
Tenth United States Army
The Tenth United States Army was the last army level command established during the Pacific War during World War II, and included divisions from both the U.S. Army and the U.S. Marine Corps.
History
The headquarters of the Tenth Army was forme ...
*
Fourteenth United States Army
Fourteenth United States Army was a fictitious/military deception field army, under the command of John P. Lucas, developed under Operation Quicksilver as a part of the fictitious First United States Army Group.
Alleged composition
As part of a ...
(World War II "phantom" formation)
*
Fifteenth United States Army
The Fifteenth United States Army, commonly known as Fifteenth Army, was a field army of the United States in the European Theater of World War II. It was the last United States field army to see service in northwestern Europe during the war an ...
Army corps
Airborne,
armored
Armour (British English) or armor (American English; see spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, especially direct contact weapons or projectiles during combat, or ...
, and
infantry
Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and marine ...
are grouped separately. The numbering system for the airborne corps is a continuation of the infantry numbering system.
Airborne corps
*
XVIII Airborne Corps
The XVIII Airborne Corps is a corps of the United States Army that has been in existence since 1942 and saw extensive service during World War II. The corps is designed for rapid deployment anywhere in the world and is referred to as "Americ ...
Armored corps
*
I Armored Corps (reflagged as the
Seventh Army)
* II Armored Corps (reflagged as
XVIII Airborne Corps
The XVIII Airborne Corps is a corps of the United States Army that has been in existence since 1942 and saw extensive service during World War II. The corps is designed for rapid deployment anywhere in the world and is referred to as "Americ ...
)
* III Armored Corps (reflagged as
XIX Corps)
* IV Armored Corps (reflagged as
XX Corps)
Army corps
*
I Corps I Corps, 1st Corps, or First Corps may refer to:
France
* 1st Army Corps (France)
* I Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars
* I Corps (Grande Armée), a unit of the Imperial French A ...
*
II Corps
*
III Corps
*
IV Corps
*
V Corps 5th Corps, Fifth Corps, or V Corps may refer to:
France
* 5th Army Corps (France)
* V Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars
* V Corps (Grande Armée), a unit of the Imperial French A ...
*
VI Corps 6 Corps, 6th Corps, Sixth Corps, or VI Corps may refer to:
France
* VI Cavalry Corps (Grande Armée), a cavalry formation of the Imperial French army during the Napoleonic Wars
* VI Corps (Grande Armée), a formation of the Imperial French army dur ...
*
VII Corps 7th Corps, Seventh Corps, or VII Corps may refer to:
* VII Corps (Grande Armée), a corps of the Imperial French army during the Napoleonic Wars
* VII Corps (German Empire), a unit of the Imperial German Army prior to and during World War I
* VI ...
*
VIII Corps 8th Corps, Eighth Corps, or VIII Corps may refer to:
* VIII Corps (Grande Armée), a unit of the Imperial French army during the Napoleonic Wars
* VIII Army Corps (German Confederation)
* VIII Corps (German Empire), a unit of the Imperial German A ...
*
IX Corps 9 Corps, 9th Corps, Ninth Corps, or IX Corps may refer to:
France
* 9th Army Corps (France)
* IX Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars
Germany
* IX Corps (German Empire), a unit of the Imperial Ger ...
*
X Corps 10th Corps, Tenth Corps, or X Corps may refer to:
France
* 10th Army Corps (France)
* X Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars
Germany
* X Corps (German Empire), a unit of the Imperial German Army
* ...
*
XI Corps 11 Corps, 11th Corps, Eleventh Corps, or XI Corps may refer to:
* 11th Army Corps (France)
* XI Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars
* XI Corps (German Empire), a unit of the Imperial German Army
* ...
*
XII Corps 12th Corps, Twelfth Corps, or XII Corps may refer to:
* 12th Army Corps (France)
* XII Corps (Grande Armée), a corps of the Imperial French Army during the Napoleonic Wars
* XII (1st Royal Saxon) Corps, a unit of the Imperial German Army
* XII ...
*
XIII Corps
*
XIV Corps 14 Corps, 14th Corps, Fourteenth Corps, or XIV Corps may refer to:
* XIV Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars
* XIV Corps (German Empire), a unit of the Imperial German Army prior to and during Worl ...
*
XV Corps 15th Corps, Fifteenth Corps, or XV Corps may refer to:
*XV Corps (British India)
* XV Corps (German Empire), a unit of the Imperial German Army prior to and during World War I
* 15th Army Corps (Russian Empire), a unit in World War I
* XV Royal Ba ...
*
XVI Corps
*
XVII Corps
*
XIX Corps
*
XX Corps
*
XXI Corps
*
XXII Corps
*
XXIII Corps
*
XXIV Corps
*
XXXVI Corps
*
XXXVII Corps
Army divisions
Air assault divisions
*
11th Air Assault Division (Test) (1963–1965)
Airborne divisions
*
6th Airborne Division (phantom World War II division)
*
9th Airborne Division (phantom World War II division)
*
11th Airborne Division "Angels"
*
13th Airborne Division "Lucky Thirteenth"
*
15th Airborne Division (unorganized World War II division)
*
17th Airborne Division
The 17th Airborne Division, "The Golden Talons", was an airborne infantry division of the United States Army during World War II, commanded by Major General William M. Miley.
It was officially activated as an airborne division in April 1943 ...
"Golden Talons"
*
18th Airborne Division (phantom World War II division)
*
21st Airborne Division (phantom World War II division)
*
80th Airborne Division (1946–52)
*
82nd Airborne Division
The 82nd Airborne Division is an airborne infantry division of the United States Army specializing in parachute assault operations into denied areasSof, Eric"82nd Airborne Division" ''Spec Ops Magazine'', 25 November 2012. Archived from thori ...
"All American"
*
84th Airborne Division (1946–52)
*
100th Airborne Division (1946–52)
*
101st Airborne Division
The 101st Airborne Division (Air Assault) ("Screaming Eagles") is a light infantry division of the United States Army that specializes in air assault operations. It can plan, coordinate, and execute multiple battalion-size air assault operati ...
"Screaming Eagles"
*
108th Airborne Division (1946–52), Later Division was Army Reserve Division, serving as in Infantry and later Training missions
*
135th Airborne Division (phantom World War II division)
Armored divisions
*
1st Armored Division "Old Ironsides"
*
2nd Armored Division "Hell On Wheels"
*
3rd Armored Division "Spearhead Division"
*
4th Armored Division "Breakthrough Division"
*
5th Armored Division "Victory"
*
6th Armored Division
The 6th Armored Division ("Super Sixth") was an armored division of the United States Army during World War II. It was formed with a cadre from the 2nd Armored Division.
History
The division was activated on 15 February 1942 at Fort Knox ...
"Super Sixth", "Bulgebusters"
*
7th Armored Division "Lucky Seventh"
*
8th Armored Division "Showhorse"
*
9th Armored Division "The Phantom Division"
*
10th Armored Division "Tiger Division"
*
11th Armored Division "Thunderbolt Division"
*
12th Armored Division "Hellcat Division"
*
13th Armored Division
*
14th Armored Division
*
15th Armored Division (phantom World War II division)
*
16th Armored Division
*
18th Armored Division (unorganized World War II division)
*
19th Armored Division (unorganized World War II division)
*
20th Armored Division
*
21st Armored Division (unorganized World War II division)
*
22nd Armored Division (unorganized World War II division)
*
25th Armored Division (phantom World War II division)
*
27th Armored Division
*
30th Armored Division
The 30th Armored Division was a Tennessee-based unit of the Army National Guard from the 1950s to the 1970s.
Activation and service
In 1954 the 30th Infantry Division was reorganized, with units in North Carolina and South Carolina constitutin ...
*
39th Armored Division (phantom World War II division) (possible post war Armored Brigade, not division)
*
40th Armored Division
*
48th Armored Division (
Georgia Army National Guard
The Georgia Army National Guard is the Army National Guard component of the Georgia National Guard, administratively part of the Georgia Department of Defense. It consists of more than 11,100 citizen-soldiers training in more than 79 hometown a ...
to 1967)
*
49th Armored Division "Lone Star" TX ARNG (1946–68, 1973–2004)
*
50th Armored Division "Jersey Blues" NJ ARNG (up to early 1990s)
Cavalry divisions
*
Cavalry Division—authorized as the 4th Regular Army division in 1913; never officially numerically designated.
*
1st Cavalry Division
*
2nd Cavalry Division
*
3rd Cavalry Division
*
15th Cavalry Division
*
21st Cavalry Division
*
22nd Cavalry Division
*
23rd Cavalry Division
*
24th Cavalry Division
*
61st Cavalry Division
*
62nd Cavalry Division
*
63rd Cavalry Division
*
64th Cavalry Division
*
65th Cavalry Division
*
66th Cavalry Division
Infantry divisions
*
1st Infantry Division "The Big Red One"
*
2nd Infantry Division "Indian Head Division"
*
3rd Infantry Division "Rock of the Marne"
*
4th Infantry Division "Ivy Division", "Iron Horse"
*
5th Infantry Division "Red Diamond"
*
6th Infantry Division "Red Star"
*
7th Infantry Division "Bayonet Division"
*
8th Infantry Division "Pathfinders", "Golden Arrow"
*
9th Infantry Division "Octfoil", "Old Reliables"
*
10th Division (World War I)
*
10th Mountain Infantry Division (1943–1957)
*
11th Division (World War I)
*
12th Division (World War I)
*
12th Infantry Division "Philippine division"
*
13th Division "Lucky 13 Division" (World War I)
*
14th Division (World War I)
*
14th Infantry Division (phantom World War II division)
*
15th Division (World War I)
*
16th Division (World War I)
*
17th Division (World War I)
*
18th Division (World War I)
*
19th Division "Moon & Star"
*
19th Infantry Division (phantom World War II division)
*
20th Division (World War I)
*
22nd Infantry Division (phantom World War II division)
*
23rd Infantry Division "Americal Division"
*
24th Infantry Division "Victory Division"
*
25th Infantry Division "Tropic Lightning"
*
26th Infantry Division "Yankee Division"
*
27th Infantry Division "New York Division"
*
28th Infantry Division "Keystone Division"
*
29th Infantry Division "The Blue and Gray"
*
30th Infantry Division "Old Hickory"
*
31st Infantry Division "Dixie Division"
*
32nd Infantry Division "Red Arrow"
*
33rd Infantry Division "Prairie Division"
*
34th Infantry Division "Red Bull Division"
*
35th Infantry Division "Santa Fe Division"
*
36th Infantry Division "Texas Division"
*
37th Infantry Division "Buckeye Division"
*
38th Infantry Division "Cyclone Division"
*
39th Infantry Division "Delta Division"
*
40th Infantry Division "Sunburst Division"
*
41st Infantry Division "Sunset Division"
*
42nd Infantry Division "Rainbow Division"
*
43rd Infantry Division "Red Wing Division"
*
44th Infantry Division
*
45th Infantry Division "Thunderbird Division"
*
46th Infantry Division (United States) (phantom World War II division, postwar National Guard formation)
*
47th Infantry Division (Post-war National Guard Division nicknamed "Viking")
*
48th Infantry Division (United States) (phantom World War II division, postwar National Guard formation)
*
49th Infantry Division (Post-war National Guard Division nicknamed "49'ers")
*
50th Infantry Division (phantom World War II division)
*
51st Infantry Division (Post-war National Guard Division)
*
52nd Infantry Division
*
55th Infantry Division (phantom World War II division)
*
59th Infantry Division (phantom World War II division)
* 61st Infantry Division (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
, unorganized World War II division)
* 62nd Infantry Division (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
, unorganized World War II division)
*
63rd Infantry Division
*
65th Infantry Division
*
66th Infantry Division
* an infantry division with the number 67 was never organized during World War II (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
)
* 68th Infantry Division - never organized during World War II (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
)
*
69th Infantry Division
*
70th Infantry Division "Trailblazers"
*
71st Infantry Division "Red Circle"
* an infantry division with the number 72 was never organized during World War II (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
)
* an infantry division with the number 73 was never organized during World War II (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
)
* an infantry division with the number 74 was never organized during World War II (see
Divisions of the United States Army
This list of United States Army divisions is divided into three eras: 1911–1917, 1917–1941, and 1941–present. These eras represent the major evolutions of army division structure (there have been several minor changes during these times). ...
)
*
75th Infantry Division
*
76th Infantry Division "Liberty Bell Division"
*
77th Infantry Division 77th Division or 75th Infantry Division may refer to:
* 77th Infantry Division (Wehrmacht), Germany
* 77th Infantry Division of Khurasan, Iran
* 77th Division (Imperial Japanese Army)
* 77th Division (People's Republic of China)
* 77th Division ( ...
"Metropolitan Division" also "Statue of Liberty Division"
*
78th Infantry Division "Lightning Division"
*
79th Infantry Division "Liberty Division"
*
80th Infantry Division "Blue Ridge Division"
*
81st Infantry Division "Wildcat Division"
*
82nd Infantry Division "All American Division" (Later Airborne Division with same number)
*
83rd Infantry Division "Thunderbolt Division"
*
84th Infantry Division "Railsplitters"
*
85th Infantry Division "Custer Division"
*
86th Infantry Division "Blackhawk Division"
*
87th Infantry Division "Golden Acorn"
*
88th Infantry Division "Blue Devils"
*
89th Infantry Division "Rolling W Division"
*
90th Infantry Division "Tough Ombres"
*
91st Infantry Division "Wild West"
*
92nd Infantry Division "Buffalo Division"
*
93rd Infantry Division "Blue Helmets"
*
94th Infantry Division "Neuf-Cats"
*
95th Infantry Division "Ironman Division" (Also "Victory Division", and "Iron Men of Metz Division")
*
96th Infantry Division "Deadeye Division"
*
97th Infantry Division "Trident Division"
*
98th Infantry Division "Iroquois"
*
99th Infantry Division
The 99th Infantry Division was formed in 1942 and deployed overseas in 1944. The "Checkerboard" or "Battle Babies" division landed at the French port of Le Havre and proceeded northeast to Belgium. During the heavy fighting in the Battle of the ...
"Checkerboard Division"
*
100th Infantry Division "Century"
*
101st Division (Later Airborne Division with same number)
*
102nd Infantry Division "Ozark Division"
*
103rd Infantry Division "Cactus Division"
*
104th Infantry Division "Timberwolf"
* intended as a Black formation, an infantry division with the number 105 was never organized during World War II
*
106th Infantry Division "Golden Lion Division"
* an infantry division with the number 107 was never organized during World War II
[Wilson, 170.]
* 108th Infantry Division
*
108th Infantry Division "Golden Griffons" (Formerly Airborne Division of same number)
*
109th Infantry Division (phantom World War II division)
*
112th Infantry Division (phantom World War II division)
*
119th Infantry Division (phantom World War II division)
*
125th Infantry Division (phantom World War II division)
*
130th Infantry Division (phantom World War II division)
*
141st Infantry Division (phantom World War II division)
*
157th Infantry Division (phantom World War II division)
*
Americal Division
The Americal Division was an infantry division of the United States Army during World War II and the Vietnam War.
The division was activated 27 May 1942 on the island of New Caledonia. In the immediate emergency following Pearl Harbor, the ...
(see
23rd Infantry Division)
*
Hawaiian Division
The Hawaiian Division was a division of the United States Army, dedicated to the defense of Hawaii. This division was named rather than numbered, as were the Philippine, Panama Canal and Americal Divisions. It was first activated under the peac ...
(see also:
24th Infantry Division;
25th Infantry Division)
*
Maneuver Division (1911)
*
Panama Canal Division
The Panama Canal Division was a unit of the United States Army, established in order to ensure the United States could adequately defend the Canal Zone in Panama. When it was authorized in 1920, similar divisions were organized to defend Hawaii a ...
(inactivated 1932)
*
Philippine Division (see 12th Infantry Division)
Light divisions
*
10th Light Division (Alpine)
*
71st Light Division (Truck)
*
89th Light Division (Pack)
Mountain divisions
*
10th Mountain Division
The 10th Mountain Division (Light Infantry) is a light infantry division in the United States Army based at Fort Drum, New York. Formerly designated as a mountain warfare unit, the division was the only one of its size in the US military to re ...
Reserve training divisions
*
75th Division
*
78th Division "Lightning Division"
*
80th Division "Blue Ridge Division"
*
84th Division "Lincoln County Division"
*
85th Division "Custer Division"
*
87th Division "Golden Acorn Division"
*
91st Division "Wild West Division"
*
95th Division "Victory Division"
*
98th Division "Iroquois Division"
*
100th Division "Century Division"
*
104th Division "Timberwolf Division"
*
108th Division "Golden Griffons"
References
Further reading
* {{cite book , last=Wilson , first=John B. , date=1998 , title=Maneuver and Firepower: The Evolution of Divisions and Separate Brigades , url=http://www.history.army.mil/html/books/060/60-14-1/cmhPub_60-14-1.pdf , location=
Washington, D.C.
)
, image_skyline =
, image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, Na ...
, format=PDF , publisher=
Center for Military History, U.S. Army , isbn=0-16-049571-7 , access-date=April 5, 2015
Lists of United States Army units and formations