The following is a list of United States Army

United States Army

The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 and United States Marine Corps

United States Marine Corps

The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 divisions of World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

.

Overview

The United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 began the war with only a handful of active divisions: five infantry and one cavalry. By the end of the war, the nation had fielded nearly one hundred. Additionally, due to the US Army's method of employment combined with events of the war, the United States did not suffer the destruction of any of its division-size units during the conflict, except for the Philippine Division in 1942. See also the "phantom"

Operation Quicksilver (WWII)

In World War II, Operation Quicksilver was a sub-plan of Operation Fortitude, the 1944 deception plan designed to induce the Germans to hold troops away from Normandy in belief that the Normandy landing was only a feint and that the major invasion would come in the Pas-de-Calais...

 units used to confuse the Germans.

Armored Divisions

• U.S. 1st Armored Division
  U.S. 1st Armored Division
  The 1st Armored Division—nicknamed "Old Ironsides"—is a standing armored division of the United States Army with base of operations in Fort Bliss, Texas. It was the first armored division of the U.S...
  
  : Formed in 1940, the 1st served in North Africa
  North African campaign
  During the Second World War, the North African Campaign took place in North Africa from 10 June 1940 to 13 May 1943. It included campaigns fought in the Libyan and Egyptian deserts and in Morocco and Algeria and Tunisia .The campaign was fought between the Allies and Axis powers, many of whom had...
  
   from November 1942 to May 1943 and in Italy
  Allied invasion of Italy
  The Allied invasion of Italy was the Allied landing on mainland Italy on September 3, 1943, by General Harold Alexander's 15th Army Group during the Second World War. The operation followed the successful invasion of Sicily during the Italian Campaign...
  
   from October 1943 to the end of the war.
• U.S. 2nd Armored Division
  U.S. 2nd Armored Division
  The 2nd Armored Division was an armored division of the United States Army. The division played an important role during World War II in the invasions of North Africa and Sicily and the liberation of France, Belgium, and Holland and the invasion of Germany...
  
  : Formed in 1940, the 2d served in North Africa from November 1942 to May 1943, landed in Sicily in July 1943, and participated in the liberation of France
  Operation Overlord
  Operation Overlord was the code name for the Battle of Normandy, the operation that launched the invasion of German-occupied western Europe during World War II by Allied forces. The operation commenced on 6 June 1944 with the Normandy landings...
  
   from June 1944 to the end of the war.
• U.S. 3rd Armored Division
  U.S. 3rd Armored Division
  The 3rd Armored Division was an armored division of the United States Army. Nickamed the Third Herd, the division was first activated in 1941, and was active in the European Theater of World War II. The division was stationed in West Germany for much of the Cold War, and participated in the...
  
  : Formed in 1941, the 3d served in NW Europe from June 1944 to the end of the war.
• U.S. 4th Armored Division
  U.S. 4th Armored Division
  The 4th Armored Division of the United States Army was an armored division that compiled a distinguished career in the European theater of World War II. Unlike many other World War II U.S. armored divisions, the 4th never adopted an official divisional nickname or slogan...
  
  : Formed in 1941, the 4th served in NW Europe from July 1944 to the end of the war.
• U.S. 5th Armored Division
  U.S. 5th Armored Division
  The 5th Armored Division was an armored formation of the United States Army active from 1941 to 1945 and from 1950 to 1956.-History:...
  
  : Formed in 1941, the 5th served in NW Europe from July 1944 to the end of the war.
• U.S. 6th Armored Division
  U.S. 6th Armored Division
  The 6th Armored Division was an armored division of the United States Army during World War II. It was formed with a cadre from the 2nd Armored Division. 6th AD was formed under the 1942 Table of Organization and Equipment.-History:...
  
  : Formed in 1942, the 6th served in NW Europe from July 1944 to the end of the war.
• U.S. 7th Armored Division
  U.S. 7th Armored Division
  The 7th Armored Division was an armored division of the United States Army in World War II.-Activation and organization:...
  
  : Formed in 1942, the 7th served in NW Europe from August 1944 to the end of the war.
• U.S. 8th Armored Division
  U.S. 8th Armored Division
  The 8th Armored Division was an armored division of the United States Army that served in the European Theater of World War II.-Stateside:The devastating successes of the German armored units in Poland and France underscored America's need for an effective armored force...
  
  : Formed in 1942, the 8th served in NW Europe from January 1945 to the end of the war.
• U.S. 9th Armored Division
  U.S. 9th Armored Division
  The 9th Armored Division was an armored division of the United States Army in World War II. In honor of their World War II service, the 9th was officially nicknamed the "Phantom Division."-History:...
  
  : Formed in 1942, the 9th served in NW Europe from December 1944 to the end of the war.
• U.S. 10th Armored Division
  U.S. 10th Armored Division
  The 10th Armored Division was an armored division of the United States Army in World War II. During the European Theater of Operations the 10th Armored Division was part of the Twelfth United States Army Group and was originally assigned to General George S. Patton’s Third United States Army...
  
  : Formed in 1942, the 10th served in NW Europe from September 1944 to the end of the war.
• U.S. 11th Armored Division
  U.S. 11th Armored Division
  The US 11th Armored Division was a division of the United States Army in World War II. It was activated on 15 August 1942 at Camp Polk, Louisiana and moved on 24 June 1943 for the Louisiana Maneuvers...
  
  : Formed in 1942, the 11th served in NW Europe from December 1944 to the end of the war.
• U.S. 12th Armored Division
  U.S. 12th Armored Division
  The 12th Armored Division was an armored division of the United States Army in World War II.-History:The division was activated on 15 September 1942....
  
  : Formed in 1942, the 12th served in NW Europe from November 1944 to the end of the war.
• U.S. 13th Armored Division
  U.S. 13th Armored Division
  The 13th Armored Division was an armored division of the United States Army in World War II.-History:The division was activated on 15 October 1942 at Camp Beale, California, East of Marysville....
  
  : Formed in 1942, the 13th served in NW Europe from January 1945 to the end of the war.
• U.S. 14th Armored Division
  U.S. 14th Armored Division
  The 14th Armored Division was an armored division of the United States Army in World War II. It remains on the permanent rolls of the Regular Army as an inactive division, and is eligible for reactivation should the need ever arise...
  
  : Formed in 1942, the 14th served in NW Europe from October 1944 to the end of the war.
• U.S. 16th Armored Division
  U.S. 16th Armored Division
  The 16th Armored Division was an armored division of the United States Army in World War II.-Table of Organization:HHC#BG John L. Pierce – September, 1944 – 15 October 1945-Association:*16th Armored Division Association*2517 Connecticut Avenue...
  
  : Formed in 1942, the 16th served in NW Europe from February 1945 to the end of the war.
• U.S. 20th Armored Division
  U.S. 20th Armored Division
  The 20th Armored Division was an armored division of the United States Army in World War II. It was activated on 15 March 1943 at Camp Campbell in Kentucky. The Division has no real nickname although it did associate itself with the nickname "Armoraiders" while in training at Camp Campbell...
  
  : Formed in 1942, the 20th served in NW Europe from February 1945 to the end of the war.

Cavalry Divisions

• 1st Cavalry Division: Existing prior to 1940, the 1st served in the Pacific
  Pacific War
  The Pacific War, also sometimes called the Asia-Pacific War refers broadly to the parts of World War II that took place in the Pacific Ocean, its islands, and in East Asia, then called the Far East...
  
   from December 1943 to the end of the war.
• 2nd Cavalry Division
  2nd Cavalry Division (United States)
  -Heraldry:SHOULDER SLEEVE INSIGNIA*Description: On a yellow Norman shield with a green border, a blue chevron below two eight-pointed blue stars.*Blazon: Or, a chevron azure, in chief 2 mullets of eight points of the second, a bordure vert....
  
  : Formed in 1942, the 2nd never engaged in combat. It was assigned to construct airfields in North Africa. Deactivated in 1944.

Infantry Divisions

• U.S. 1st Infantry Division
  U.S. 1st Infantry Division
  The 1st Infantry Division of the United States Army is the oldest division in the United States Army. It has seen continuous service since its organization in 1917...
  
  : Existing prior to 1940, the 1st served in North Africa from November 1942 to May 1943, in Sicily from June 1943 to August 1943, and in NW Europe from June 1944 to the end of the war.
• U.S. 2d Infantry Division: Existing prior to 1940, the 2d served in NW Europe from June 1944 to the end of the war.
• U.S. 3d Infantry Division
  U.S. 3d Infantry Division
  The 3rd Infantry Division is a United States Army infantry division based at Fort Stewart, Georgia. It is a direct subordinate unit of the XVIII Airborne Corps and U.S. Army Forces Command...
  
  : Existing prior to 1940, the 3d served in North Africa from November 1942, in Sicily from July 1943, in Italy from September 1943, and landed in Southern France
  Operation Dragoon
  Operation Dragoon was the Allied invasion of southern France on August 15, 1944, during World War II. The invasion was initiated via a parachute drop by the 1st Airborne Task Force, followed by an amphibious assault by elements of the U.S. Seventh Army, followed a day later by a force made up...
  
   in August 1944.
• U.S. 4th Infantry Division
  U.S. 4th Infantry Division
  The 4th Infantry Division is a modular division of the United States Army based at Fort Carson, Colorado, with four brigade combat teams. It is a very technically advanced combat division in the U.S. Army....
  
  : Formed in 1940, the 4th served in NW Europe from June 1944 to the end of the war.
• 5th Infantry Division: Existing prior to 1940, the 5th served in NW Europe from July 1944 to the end of the war.
• 6th Infantry Division: Existing prior to 1940, the 6th served in the Pacific from January 1944 to the end of the war.
• 7th Infantry Division: Formed in 1940, the 7th served in the Pacific from May 1943 to the end of the war.
• U.S. 8th Infantry Division
  U.S. 8th Infantry Division
  The 8th Infantry Division, was an infantry division of the United States Army during the 20th Century. The division served in World War I, World War II, and Operation Desert Storm. Initially activated in January 1918, the unit did not see combat during World War I and returned to the United States...
  
  : Formed in 1940, the 8th served in NW Europe from July 1944 to the end of the war.
• U.S. 9th Infantry Division
  U.S. 9th Infantry Division
  The 9th Infantry Division was created as the 9th Division during World War I, but never deployed overseas. Later, the division was an important unit of the United States Army in World War II and the Vietnam War...
  
  : Formed in 1940, the 9th landed in North Africa in November 1942, in Sicily in July 1943, in Italy in September 1943, and in NW Europe from June 1944 to the end of the war.
• U.S. 10th Infantry Division: Formed as the U.S. 10th Mountain Division
• U.S. 11th Infantry Division: Formed as the U.S. 11th Airborne Division
  U.S. 11th Airborne Division
  -Knollwood Maneuver:The 11th Airborne, as the attacking force, was assigned the objective of capturing Knollwood Army Auxiliary Airfield near Fort Bragg in North Carolina. The force defending the airfield and its environs was a combat team composed of elements of the 17th Airborne Division and a...
  
  
• U.S. 12th Infantry Division: Formed as the Philippine division and was surrendered at Bataan in 1942.
• U.S. 13th Infantry Division: Formed as the U.S. 13th Airborne Division
• U.S. 17th Infantry Division: Formed as the U.S. 17th Airborne Division
  U.S. 17th Airborne Division
  The 17th Airborne Division was an airborne unit in the United States Army during World War II, and was commanded by Major General William M. Miley. It was officially activated as an airborne division in April 1943 but was not immediately shipped out to a combat theater, remaining in the United...
  
  
• U.S. 23rd Infantry Division: Formed as the Americal Division
  Americal Division
  The 23rd Infantry Division, more commonly known as the Americal Division of the United States Army was formed in May 1942 on the island of New Caledonia. In the immediate emergency following Pearl Harbor, the United States had hurriedly sent three individual regiments to defend New Caledonia...
  
   in 1942, served in the Pacific from October 1942 to the end of the war.
• 24th Infantry Division (United States): Formed in 1941, the 24th served in the Pacific from April 1944 to the end of the war.
• 25th Infantry Division (United States): Formed in 1941, the 25th served in the Pacific from December 1942 to the end of the war.
• 26th Infantry Division
  26th Infantry Division (United States)
  The 26th Infantry Division was an infantry division of the United States Army. As a major formation of the Massachusetts Army National Guard, it was based in Boston, Massachusetts for most of its history...
  
  : Formed in 1941, the 26th served in NW Europe from September 1944 to the end of the war.
• 27th Infantry Division: Formed in 1940, the 27th served in the Pacific from June 1944 to the end of the war.
• U.S. 28th Infantry Division
  U.S. 28th Infantry Division
  The 28th Infantry Division is a unit of the Army National Guard and is the oldest division-sized unit in the armed forces of the United States. The division was officially established in 1879 and was later redesignated as the 28th Division in 1917, after the entry of America into the First World War...
  
  : Formed in 1941, the 28th served in NW Europe from July 1944 to the end of the war.
• U.S. 29th Infantry Division
  U.S. 29th Infantry Division
  The 29th Infantry Division is an infantry division of the United States Army based in Fort Belvoir, Virginia. It is a formation of the United States Army National Guard and contains units from Maryland, Virginia, and North Carolina....
  
  : Formed in 1941, the 29th served in NW Europe from June 1944 to the end of the war.
• 30th Infantry Division: Formed in 1940, the 30th served in NW Europe from June 1944 to the end of the war.
• 31st Infantry Division: Formed in 1940, the 31st served in the Pacific from March 1944 to the end of the war.
• U.S. 32d Infantry Division: Formed in 1940, the 32d served in the Pacific from September 1942 to the end of the war.
• U.S. 33d Infantry Division: Formed in 1941, the 33d served in the Pacific from December 1944 to the end of the war.
• 34th Infantry Division: Formed in 1941, the 34th served in North Africa from November 1942 to May 1943, and in Italy from September 1943 to the end of the war.
• U.S. 35th Infantry Division
  U.S. 35th Infantry Division
  -Combat Chronicle:The division was organized in August 1917 as a National Guard formation with troops from Kansas and Missouri, after a few months as the 14th Division. It consisted of the 69th Infantry Brigade and the 70th Infantry Brigade .It went overseas in May 1918...
  
  : Formed in 1940, the 35th served in NW Europe from July 1944 to the end of the war.
• U.S. 36th Infantry Division
  U.S. 36th Infantry Division
  -Pre 2 October 1941 Square Organization:*HHC, 36th Infantry Division, TXARNG**36th Military Police Platoon**36th Signal Company**111th Ordnance Company**111th Engineer Regiment , TXARNG**111th Medical Regiment**111th Quartermaster Regiment...
  
  : Formed in 1940, the 36th served in North Africa from April to May 1943, in Italy from September 1943 to July 1944, and in Southern France from August 1944 to the end of the war.
• 37th Infantry Division: Formed in 1940, the 37th served in the Pacific from July 1943 to the end of the war.
• 38th Infantry Division: Formed in 1941, the 38th served in the Pacific from December 1944 to the end of the war.
• U.S. 39th Infantry Division
  U.S. 39th Infantry Brigade
  The 39th Infantry Brigade Combat Team, formerly called the 39th Infantry Brigade – nicknamed The Arkansas Brigade or the Bowie Team – is a combat brigade of the United States Army made up of soldiers from the Arkansas Army National Guard. The 39th IBCT was one of 15 National Guard brigades...
  
  : Not activated, however elements of this division would see action as parts of other divisions.
• 40th Infantry Division: Formed in 1941, the 40th served in the Pacific from April 1944 to the end of the war.
• 41st Infantry Division: Formed in 1940, the 41st served in the Pacific from January 1943 to the end of the war.
• U.S. 42d Infantry Division: Formed in 1943, the 42d served in Northwest Europe from January 1945 to the end of the war.
• U.S. 43d Infantry Division: Formed in 1941, the 43d served in the Pacific from July 1943 to the end of the war.
• 44th Infantry Division: Formed in 1940, the 44th served in Northwest Europe from September 1944 to the end of the war.
• 45th Infantry Division: Formed in 1940, the 45th served in Sicily in July and August 1943, then in Italy through July 1944, and in Northwest Europe via Southern France from August 1944 to the end of the war.
• U.S. 63d Infantry Division: Formed in 1943, the 63d served in Northwest Europe from January 1945 to the end of the war.
• 65th Infantry Division: Formed in 1943, the 65th served in Northwest Europe from January 1945 to the end of the war.
• 66th Infantry Division: Formed in 1943, the 66th served in Northwest Europe from December 1944 to the end of the war.
• 69th Infantry Division: Formed in 1943, the 69th saw combat in Germany from 12 February to 7 September.
• 70th Infantry Division: Formed in 1943, the 69th saw combat in Germany from 28 December 1944 to the end of the war
• 71st Infantry Division: Formed in 1943, the 71st saw combat in Germany from 11 March 1945 until its deactivation on 1 March 1946
• 75th Infantry Division: Formed in 1943, the 75th first saw combat in the Battle of the Bulge
  Battle of the Bulge
  The Battle of the Bulge was a major German offensive , launched toward the end of World War II through the densely forested Ardennes mountain region of Wallonia in Belgium, hence its French name , and France and...
  
   and was active until 13 April 1945
• 76th Infantry Division: Existing prior to 1940, the 76th served in Northwest Europe from January 1945 until the end of the war.
• 77th Infantry Division: Existing prior to 1940, the 77th served in the Pacific from 21 July 1944 until 15 March 1946
• 78th Infantry Division: Existing prior to 1940, the 78th served in Northwest Europe from 10 December 1944 to 22 May 1946
• 79th Infantry Division: Existing prior to 1940, the 79th served in Europe from June 1944 until April 1945
• 80th Infantry Division: Existing prior to 1940, the 80th served in Northwest and Central Europe from August 1944 until April 1945
• 81st Infantry Division: Existing prior to 1940, the 81st served in the Pacific from June 1944 to January 1946
• U.S. 82nd Infantry Division: Formed as the U.S. 82nd Airborne Division
• 83rd Infantry Division: Existing prior to 1940, the 83rd saw combat in Northwest and Central Europe from 27 June 1944 to 6 May 1945
• 84th Infantry Division: Existing prior to 1940, the 84th served in Northwest and Central Europe from 18 November 1944 to 2 May 1945
• 85th Infantry Division: Existing prior to 1940, the 85th served in Italy from 10 April 1944 to 2 May 1945
• 86th Infantry Division: Existing prior to 1940, the 86th served in Germany from 24 March 1945 until VE Day; then were redeployed to the Philippines on August 1945
• 87th Infantry Division: Existing prior to 1940, the 87th served in Europe from 12 November 1944 to the end of the war
• 88th Infantry Division: Existing prior to 1940, the 88th served in North Africa and Southern and Central Europe from December 1943 until 2 May 1945
• 89th Infantry Division: Existing prior to 1940, the 89th served in Central Europe from January 1945 until VE-day
• 90th Infantry Division: Existing prior to 1940, the 90th served in Europe from 6 June 1944 to the end of the war
• 91st Infantry Division: Existing prior to 1940, the 91st served Southern Europe from January 1943 to October 1945
• 92nd Infantry Division: Existing prior to 1940, the 92nd was a segregated division which saw combat in Italy from 1942 to 1945
• 93d Infantry Division: Existing prior to 1940, the 93d was a segregated division which saw combat in the South Pacific from 1944 to the end of the war
• 94th Infantry Division: Formed in 1942, the 94th served in NW Europe and Central Europe from September 1944 until the end of the war.
• 95th Infantry Division: Formed in 1942, the 95th served in NW Europe from October 1944 to April 1945
• 96th Infantry Division: Formed in 1942, the 96th served in the Pacific Theater from October 1944 to June 1945
• 97th Infantry Division: Formed in 1943, the 97th served in the NW Europe from 1945 and the Pacific Theater from 1945 - March 1946 - only one of two divisions to serve in these two theatres
• 99th Infantry Division: Formed in 1942, the 99th served in Europe until April 1945.
• 100th Infantry Division: Formed in 1942, the 100th served in Europe until January 1946.
• U.S. 101st Infantry Division-the U.S. 101st Airborne Division
  101st Airborne Division
  The 101st Airborne Division—the "Screaming Eagles"—is a U.S. Army modular light infantry division trained for air assault operations. During World War II, it was renowned for its role in Operation Overlord, the D-Day landings on 6 June 1944, in Normandy, France, Operation Market Garden, the...
  
  : Formed in 1921 and reformed in 1942
• 102nd Infantry Division: Activated in 1942, the 102nd served in Europe from November 1944 until its inactivation in 1946.
• 103rd Infantry Division: Activated in 1942, the 103rd served in Europe from November 1944 until September 1945.
• 104th Infantry Division: The 104th served in Europe from August 1944 through June 1945
• 106th Infantry Division: Formed in 1942, the 106th served in NW Europe until April 1945.

United States Marine Corps Divisions

• 1st Marine Division
• 2nd Marine Division
• 3rd Marine Division
• 4th Marine Division
• 5th Marine Division
• 6th Marine Division

The divisions of other World War II nations

• List of German military units of World War II
• Divisions of the Soviet Union 1917-1945

External links

• The Combat Chronicles of United States Army Divisions in World War II compiled by the United States Army Center of Military History