Activated

World War I

• 17 May 1917:
  • 1st Infantry Division
• 26 October 1917:
  • 2nd Infantry Division
• 12 November 1917:
  • 3rd Infantry Division

Interwar years

• 25 February 1921:
  • Hawaiian Division
• 8 June 1921:
  • Philippine Division
• 31 August 1921:
  • 1st Cavalry Division

activated 1939

• 2 October 1939:
  • 5th Infantry Division
• 12 October 1939:
  • 6th Infantry Division

1940 activation

• 3 June 1940:
  • 4th Infantry Division
• 1 July 1940:
  • 7th Infantry Division
  • 8th Infantry Division
• 15 July 1940:
  • 1st Armored Division
  • 2nd Armored Division
• 1 August 1940:
  • 9th Infantry Division
• 16 September 1940:
  • 30th Infantry Division ( North Carolina, South Carolina, Tennessee)
  • 41st Infantry Division ( Washington, Oregon, Idaho, Montana, Wyoming)
  • 44th Infantry Division ( New Jersey, New York)
  • 45th Infantry Division ( Arizona, Colorado, New Mexico, Oklahoma)
• 15 October 1940:
  • 27th Infantry Division ( New York)
  • 32nd Infantry Division ( Michigan, Wisconsin)
  • 37th Infantry Division ( Ohio, Illinois)
• 25 November 1940:
  • 31st Infantry Division ( Florida, Alabama, Louisiana, Mississippi)
  • 36th Infantry Division ( Texas)
• 23 December 1940:
  • 35th Infantry Division ( Kansas, Missouri, Nebraska)

1941 activation

• 16 January 1941:
  • 26th Infantry Division ( Massachusetts)
• 17 January 1941:
  • 38th Infantry Division ( Indiana, Kentucky, West Virginia)
• 1 February 1941:
  • 1st Marine Division
  • 2nd Marine Division
• 3 February 1941:
  • 29th Infantry Division ( Virginia, Maryland, District of Columbia)
• 10 February 1941:
  • 34th Infantry Division ( North Dakota, South Dakota, Minnesota, Iowa)
• 17 February 1941:
  • 28th Infantry Division ( Pennsylvania)
• 24 February 1941:
  • 43rd Infantry Division ( Connecticut, Maine, Vermont, Rhode Island)
• 3 March 1941:
  • 40th Infantry Division ( California, Utah, Nevada)
• 5 March 1941:
  • 33rd Infantry Division ( Illinois)
• 1 April 1941:
  • 2nd Cavalry Division (Inactivated 15 July 1942)
• 15 April 1941:
  • 3rd Armored Division
  • 4th Armored Division
• 1 October 1941:
  • Hawaiian Division -> 24th Infantry Division
• 10 October 1941:
  • 5th Armored Division
  • 25th Infantry Division

1942 activation

• 15 February 1942:
  • 6th Armored Division
• 1 March 1942:
  • 7th Armored Division
• 25 March 1942:
  • 77th Infantry Division
  • 90th Infantry Division
  • 82nd Airborne Division
• 1 April 1942:
  • 8th Armored Division
• 15 May 1942:
  • 85th Infantry Division
  • 93rd Infantry Division ( Segregated)
• 27 May 1942:
  • Americal Division ( Illinois, Massachusetts, North Dakota)
• 15 June 1942:
  • 76th Infantry Division
  • 79th Infantry Division
  • 81st Infantry Division
• 15 July 1942:
  • 9th Armored Division
  • 10th Armored Division
  • 80th Infantry Division
  • 88th Infantry Division
  • 89th Infantry Division
  • 95th Infantry Division
• 15 August 1942:
  • 11th Armored Division
  • 78th Infantry Division
  • 83rd Infantry Division
  • 91st Infantry Division
  • 96th Infantry Division
  • 101st Airborne Division
• 15 September 1942:
  • 12th Armored Division
  • 94th Infantry Division
  • 98th Infantry Division
  • 102nd Infantry Division
  • 104th Infantry Division
• 16 September 1942:
  • 3rd Marine Division
• 15 October 1942:
  • 13th Armored Division
  • 84th Infantry Division
  • 92nd Infantry Division ( Segregated)
• 15 November 1942:
  • 14th Armored Division
  • 99th Infantry Division
  • 100th Infantry Division
  • 103rd Infantry Division
• 15 December 1942:
  • 86th Infantry Division
  • 87th Infantry Division

1943 activation

• 25 February 1943:
  • 2nd Cavalry Division ( Segregated - inactivated 10 May 1944)
  • 11th Airborne Division
  • 97th Infantry Division
• 15 March 1943:
  • 20th Armored Division
  • 106th Infantry Division
• 15 April 1943:
  • 17th Airborne Division
  • 66th Infantry Division
  • 75th Infantry Division
• 15 May 1943:
  • 69th Infantry Division
• 15 June 1943:
  • 63rd Infantry Division
  • 70th Infantry Division
• 14 July 1943:
  • 42nd Infantry Division
• 15 July 1943:
  • 10th Mountain Division
  • 71st Infantry Division
  • 16th Armored Division
• 13 August 1943:
  • 13th Airborne Division
• 16 August 1943:
  • 4th Marine Division
  • 65th Infantry Division

1944 activation

• 21 January 1944:
  • 5th Marine Division
• 7 September 1944:
  • 6th Marine Division

Entered combat - chronological

1941 combat

• 8 December 1941:
  • Philippine Division (Philippine Islands)

1942 combat

• 7 August 1942:
  • 1st Marine Division (Guadalcanal)
• 2 October 1942:
  • 32nd Infantry Division (Papua)
• 13 October 1942:
  • Americal Division (Guadalcanal)
• 8 November 1942:
  • 1st Infantry Division (Algeria-French Morocco)
  • 3rd Infantry Division (Tunisia)
  • 9th Infantry Division (Algeria-French Morocco)
  • 1st Armored Division (Tunisia)
  • 34th Infantry Division (Tunisia)

1943 combat

• 4 January 1943:
  • 2nd Marine Division (Guadalcanal)
• 10 January 1943:
  • 25th Infantry Division (Guadalcanal)
• 17 February 1943:
  • 43rd Infantry Division (New Guinea)
• 11 May 1943:
  • 7th Infantry Division (Aleutian Islands)
• 6 July 1943:
  • 82nd Airborne Division (Sicily)
• 10 July 1943:
  • 2nd Armored Division (Sicily)
  • 45th Infantry Division (Sicily)
• 22 July 1943:
  • 37th Infantry Division (Northern Solomons)
• 9 September 1943:
  • 36th Infantry Division (Naples-Foggia)
• 1 November 1943:
  • 3rd Marine Division ( Torokina)

1944 combat

• 31 January 1944:
  • 4th Marine Division ( Kwajalein)
• 29 February 1944:
  • 1st Cavalry Division (New Guinea)
• 5 March 1944:
  • 88th Infantry Division (Rome-Arno)
• 30 March 1944:
  • 93rd Infantry Division (New Guinea)
• 10 April 1944:
  • 85th Infantry Division (Rome-Arno)
• 22 April 1944:
  • 24th Infantry Division (New Guinea)
  • 41st Infantry Division (Papua)
• 24 April 1944:
  • 40th Infantry Division (Bismarck Archipelago)
• 6 June 1944:
  • 4th Infantry Division (Normandy)
  • 29th Infantry Division (Normandy)
  • 101st Airborne Division (Normandy)
• 10 June 1944:
  • 90th Infantry Division (Normandy)
• 12 June 1944:
  • 2nd Infantry Division (Normandy)
• 14 June 1944:
  • 6th Infantry Division (New Guinea)
• 16 June 1944:
  • 27th Infantry Division (Eastern Mandates)
• 19 June 1944:
  • 79th Infantry Division (Normandy)
• 27 June 1944:
  • 83rd Infantry Division (Normandy)
• 8 July 1944:
  • 8th Infantry Division (Normandy)
• 9 July 1944:
  • 3rd Armored Division (Normandy)
• 11 July 1944:
  • 35th Infantry Division (Normandy)
• 12 July 1944:
  • 91st Infantry Division (Rome-Arno)
• 15 July 1944:
  • 30th Infantry Division (Normandy)
• 16 July 1944:
  • 5th Infantry Division (Normandy)
• 18 July 1944:
  • 31st Infantry Division (New Guinea)
• 21 July 1944:
  • 77th Infantry Division (Western Pacific)
• 27 July 1944:
  • 28th Infantry Division (Normandy)
• 28 July 1944:
  • 4th Armored Division (Normandy)
  • 6th Armored Division (Normandy)
• 2 August 1944:
  • 5th Armored Division (Normandy)
• 8 August 1944:
  • 80th Infantry Division (Northern France)
• 14 August 1944:
  • 7th Armored Division (Northern France)
• 17 September 1944:
  • 81st Infantry Division (Western Pacific)
  • 94th Infantry Division (Northern France)
• 12 October 1944:
  • 26th Infantry Division (Northern France)
• 13 October 1944:
  • 92nd Infantry Division ( Segregated) (North Apennines)
• 20 October 1944:
  • 95th Infantry Division (Northern France)
  • 96th Infantry Division (Leyte)
• 24 October 1944:
  • 44th Infantry Division (Northern France)
  • 104th Infantry Division (Northern France)
• 26 October 1944:
  • 102nd Infantry Division (Rhineland)
• 1 November 1944:
  • 10th Armored Division (Rhineland)
• 9 November 1944:
  • 99th Infantry Division (Rhineland)
  • 100th Infantry Division (Rhineland)
• 11 November 1944:
  • 103rd Infantry Division (Rhineland)
• 18 November 1944:
  • 11th Airborne Division (New Guinea)
  • 84th Infantry Division (Rhineland)
• 20 November 1944:
  • 14th Armored Division (Rhineland)
• 6 December 1944:
  • 38th Infantry Division (New Guinea)
• 7 December 1944:
  • 12th Armored Division (Rhineland)
• 10 December 1944:
  • 106th Infantry Division (Northern France)
• 13 December 1944:
  • 78th Infantry Division (Rhineland)
  • 87th Infantry Division (Rhineland)
• 16 December 1944:
  • 9th Armored Division (Rhineland)
• 18 December 1944:
  • 33rd Infantry Division (New Guinea)
• 22 December 1944:
  • 63rd Infantry Division (Rhineland)
• 23 December 1944:
  • 11th Armored Division (Rhineland)
• 25 December 1944:
  • 17th Airborne Division (Rhineland)
  • 75th Infantry Division (Rhineland)

1945 combat

• 1 January 1945:
  • 66th Infantry Division (Northern France)
• 8 January 1945:
  • 10th Mountain Division (North Apennines)
• 18 January 1945:
  • 42nd Infantry Division (Rhineland)
• 19 January 1945:
  • 76th Infantry Division (Rhineland)
• 3 February 1945:
  • 70th Infantry Division (Rhineland)
• 11 February 1945:
  • 69th Infantry Division (Rhineland)
• 19 February 1945:
  • 5th Marine Division ( Iwo Jima)
• 23 February 1945:
  • 8th Armored Division (Rhineland)
• 9 March 1945:
  • 65th Infantry Division (Rhineland)
• 12 March 1945:
  • 71st Infantry Division (Rhineland)
  • 89th Infantry Division (Rhineland)
• 29 March 1945:
  • 86th Infantry Division (Central Europe)
• 1 April 1945:
  • 6th Marine Division ( Okinawa)
  • 97th Infantry Division (Central Europe)
• 10 April 1945:
  • 13th Armored Division (Rhineland)
• 24 April 1945:
  • 20th Armored Division (Central Europe)
• 5 May 1945:
  • 16th Armored Division (Central Europe)
• no combat:
  • 13th Airborne Division (France)
  • 98th Infantry Division (Hawaii)

Entered combat - by theater

Europe

Amphibious assault landings Europe

Amphibious assault landings:

• 4 x 3rd Infantry Division (Algeria-French Morocco, Sicily, Anzio, Southern France)
• 3 x 1st Infantry Division (Algeria-French Morocco, Sicily, Normandy)
• 3 x 45th Infantry Division (Sicily, Naples-Foggia, Southern France)
• 2 x 36th Infantry Division (Naples-Foggia, Southern France)
• 1 x 4th Infantry Division (Normandy)
• 1 x 9th Infantry Division (Algeria-French Morocco)
• 1 x 29th Infantry Division (Normandy)
• 1 x 34th Infantry Division (Algeria-French Morocco)

1942

Algeria-French Morocco

Allied landings in North Africa 8–11 November 1942:

• 8 November 1942:
  • 1st Infantry Division^A (Algeria-French Morocco)
  • 3rd Infantry Division^A (Algeria-French Morocco)
  • 9th Infantry Division^A (Algeria-French Morocco)
  • 34th Infantry Division^A (Tunisia)
  • 1st Armored Division^A (Tunisia)

^A = amphibious assault landing

Tunisia

Tunisian campaign 17 November 1942 – 13 May 1943:

• 1st Infantry Division 3rd Infantry Division 9th Infantry Division 34th Infantry Division 1st Armored Division

1943

Sicily

Allied landings on Sicily 9 July – 17 August 1943:

• 9 July 1943:
  • 82nd Airborne Division^AirA (Sicily)
• 10 July 1943:
  • 2nd Armored Division (Sicily)
  • 45th Infantry Division^A (Sicily)

and 1st Infantry Division^A 3rd Infantry Division^A 9th Infantry Division

^AirA = air assault, ^A = amphibious assault landing

Naples-Foggia

Allied landings in Italy 9 September 1943 – 21 January 1944 (Landing at Anzio)

• 9 September 1943:
  • 36th Infantry Division^A (Naples-Foggia)

and 3rd Infantry Division 34th Infantry Division 45th Infantry Division^A 82nd Airborne Division 1st Armored Division

^A = amphibious assault landing

1944

Anzio

Allied landings at Anzio 22 January - 24 May 1944:

• 3rd Infantry Division^A 34th Infantry Division 36th Infantry Division 45th Infantry Division 1st Armored Division

^A = amphibious assault landing

Rome-Arno

Battles of Monte Cassino & Liberation of Rome 22 January - 9 September 1944:

• 5 March 1944:
  • 88th Infantry Division (Rome-Arno)
• 10 April 1944:
  • 85th Infantry Division (Rome-Arno)
• 12 July 1944:
  • 91st Infantry Division (Rome-Arno)

and 3rd Infantry Division 34th Infantry Division 36th Infantry Division 45th Infantry Division 1st Armored Division

Normandy

Allied landings in Normandy 6 June - 24 July 1944:

• 6 June 1944:
  • 4th Infantry Division^A (Normandy)
  • 29th Infantry Division^A (Normandy)
  • 101st Airborne Division^AirA (Normandy)

and 1st Infantry Division^A 9th Infantry Division (14 June 1944) 82nd Airborne Division^AirA 2nd Armored Division (2 July 1944)

^AirA = air assault, ^A = amphibious assault landing

• 10 June 1944:
  • 90th Infantry Division (Normandy)
• 12 June 1944:
  • 2nd Infantry Division (Normandy)
• 19 June 1944:
  • 79th Infantry Division (Normandy)
• 27 June 1944:
  • 83rd Infantry Division (Normandy)
• 8 July 1944:
  • 8th Infantry Division (Normandy)
• 9 July 1944:
  • 3rd Armored Division (Normandy)
• 11 July 1944:
  • 35th Infantry Division (Normandy)
• 15 July 1944:
  • 30th Infantry Division (Normandy)
• 16 July 1944:
  • 5th Infantry Division (Normandy)
• 27 July 1944:
  • 28th Infantry Division (Normandy)
• 28 July 1944:
  • 4th Armored Division (Normandy)
  • 6th Armored Division (Normandy)
• 2 August 1944:
  • 5th Armored Division (Normandy)

Northern France

Operation Cobra to Operation Market Garden 25 July - 14 September 1944

• 8 August 1944:
  • 80th Infantry Division (Northern France)
• 14 August 1944:
  • 7th Armored Division (Northern France)
  • 94th Infantry Division (Northern France)
• 12 October 1944:
  • 26th Infantry Division (Northern France)
• 20 October 1944:
  • 95th Infantry Division (Northern France)
• 24 October 1944:
  • 44th Infantry Division (Northern France)
  • 104th Infantry Division (Northern France)
• 10 December 1944:
  • 106th Infantry Division (Northern France)
• 1 January 1945:
  • 66th Infantry Division (Northern France)

and 1st Infantry Division 2nd Infantry Division 4th Infantry Division 5th Infantry Division 8th Infantry Division 9th Infantry Division 28th Infantry Division 29th Infantry Division 30th Infantry Division 35th Infantry Division 79th Infantry Division 83rd Infantry Division 90th Infantry Division 2nd Armored Division 3rd Armored Division 4th Armored Division 5th Armored Division 6th Armored Division

Southern France

Allied landings in Southern France 15 August - 14 September 1944:

• 3rd Infantry Division^A 36th Infantry Division^A 45th Infantry Division^A

^A = amphibious assault landing

North Apennines

Gothic Line battles 10 September 1944 – 4 April 1945:

• 13 October 1944:
  • 92nd Infantry Division ( Segregated) (North Apennines)
• 8 January 1945:
  • 10th Mountain Division (North Apennines)

and 34th Infantry Division 85th Infantry Division 88th Infantry Division 91st Infantry Division 1st Armored Division

Rhineland

Operation Market Garden to Allied invasion of Germany 15 September 1944 – 21 March 1945:

• 26 October 1944:
  • 102nd Infantry Division (Rhineland)
• 1 November 1944:
  • 10th Armored Division (Rhineland)
• 9 November 1944:
  • 99th Infantry Division (Rhineland)
  • 100th Infantry Division (Rhineland)
• 11 November 1944:
  • 103rd Infantry Division (Rhineland)
• 18 November 1944:
  • 84th Infantry Division (Rhineland)
• 20 November 1944:
  • 14th Armored Division (Rhineland)
• 7 December 1944:
  • 12th Armored Division (Rhineland)
• 13 December 1944:
  • 78th Infantry Division (Rhineland)
  • 87th Infantry Division (Rhineland)
• 22 December 1944:
  • 63rd Infantry Division (Rhineland)
• 18 January 1945:
  • 42nd Infantry Division (Rhineland)
• 19 January 1945:
  • 76th Infantry Division (Rhineland)
• 3 February 1945:
  • 70th Infantry Division (Rhineland)
• 11 February 1945:
  • 69th Infantry Division (Rhineland)
• 23 February 1945:
  • 8th Armored Division (Rhineland)
• 9 March 1945:
  • 65th Infantry Division (Rhineland)
• 12 March 1945:
  • 71st Infantry Division (Rhineland)
  • 89th Infantry Division (Rhineland)
• 10 April 1945:
  • 13th Armored Division (Rhineland)

and 1st Infantry Division 2nd Infantry Division 3rd Infantry Division 4th Infantry Division 5th Infantry Division 8th Infantry Division 9th Infantry Division 17th Airborne Division 26th Infantry Division 28th Infantry Division 29th Infantry Division 30th Infantry Division 35th Infantry Division 36th Infantry Division 44th Infantry Division 45th Infantry Division 75th Infantry Division 79th Infantry Division 80th Infantry Division 82nd Airborne Division 83rd Infantry Division 90th Infantry Division 94th Infantry Division 95th Infantry Division 101st Airborne Division 104th Infantry Division 106th Infantry Division 2nd Armored Division 3rd Armored Division 4th Armored Division 5th Armored Division 6th Armored Division 7th Armored Division 9th Armored Division 11th Armored Division

Ardennes-Alsace

Battle of the Bulge 16 December 1944 – 25 January 1945:

• 16 December 1944:
  • 9th Armored Division (Ardennes-Alsace)
• 23 December 1944:
  • 11th Armored Division (Ardennes-Alsace)
• 25 December 1944:
  • 17th Airborne Division (Ardennes-Alsace)
  • 75th Infantry Division (Ardennes-Alsace)

and 1st Infantry Division 2nd Infantry Division 3rd Infantry Division 4th Infantry Division 5th Infantry Division 9th Infantry Division 26th Infantry Division 28th Infantry Division 30th Infantry Division 35th Infantry Division 76th Infantry Division 78th Infantry Division 80th Infantry Division 82nd Airborne Division 83rd Infantry Division 84th Infantry Division 87th Infantry Division 90th Infantry Division 94th Infantry Division 99th Infantry Division 101st Airborne Division 106th Infantry Division 2nd Armored Division 3rd Armored Division 4th Armored Division 5th Armored Division 6th Armored Division 7th Armored Division 8th Armored Division 10th Armored Division

1945

Central Europe

• 29 March 1945:
  • 86th Infantry Division (Central Europe)
• 1 April 1945:
  • 97th Infantry Division (Central Europe)
• 24 April 1945:
  • 20th Armored Division (Central Europe)
• 5 May 1945:
  • 16th Armored Division (Central Europe)

and 1st Infantry Division 2nd Infantry Division 3rd Infantry Division 4th Infantry Division 5th Infantry Division 8th Infantry Division 9th Infantry Division 17th Airborne Division 26th Infantry Division 28th Infantry Division 29th Infantry Division 30th Infantry Division 35th Infantry Division 36th Infantry Division 42nd Infantry Division 44th Infantry Division 45th Infantry Division 63rd Infantry Division 65th Infantry Division 69th Infantry Division 70th Infantry Division 71st Infantry Division 75th Infantry Division 76th Infantry Division 78th Infantry Division 79th Infantry Division 80th Infantry Division 82nd Airborne Division 83rd Infantry Division 84th Infantry Division 87th Infantry Division 89th Infantry Division 90th Infantry Division 94th Infantry Division 95th Infantry Division 99th Infantry Division 100th Infantry Division 101st Airborne Division 102nd Infantry Division 103rd Infantry Division 104th Infantry Division 2nd Armored Division 3rd Armored Division 4th Armored Division 5th Armored Division 6th Armored Division 7th Armored Division 8th Armored Division 9th Armored Division 10th Armored Division 11th Armored Division 12th Armored Division 13th Armored Division 14th Armored Division

in France:

• 13th Airborne Division (no combat)
• 66th Infantry Division
• 106th Infantry Division

Po Valley

Allied spring offensive in Italy 1945 5 April - 8 May 1945:

• 10th Mountain Division 34th Infantry Division 85th Infantry Division 88th Infantry Division 91st Infantry Division 92nd Infantry Division 1st Armored Division

Pacific

Amphibious assault landings Pacific

Amphibious assault landings: Marine Corps:

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

Army:

• 3 x 7th Infantry Division
• 3 x 24th Infantry Division
• 2 x 1st Cavalry Division
• 2 x 32nd Infantry Division
• 2 x 41st Infantry Division
• 2 x 43rd Infantry Division
• 2 x 77th Infantry Division
• 2 x 96th Infantry Division
• 2 x 6th Infantry Division
• 1 x 11th Airborne Division
• 1 x 27th Infantry Division
• 1 x 31st Infantry Division
• 1 x 33rd Infantry Division
• 1 x 37th Infantry Division
• 1 x 38th Infantry Division
• 1 x 40th Infantry Division
• 1 x 81st Infantry Division

1941

Philippine Islands

Defense of the Philippines 7 December 1941 – 10 May 1942:

• 8 December 1941:
  • Philippine Division (Philippine Islands)

Central Pacific

Attack on Pearl Harbor to Gilbert Islands campaign 7 December 1941-6 December 1943:

• 7 December 1941:
  • 25th Infantry Division (Central Pacific)

• 20 November 1943:
  • 27th Infantry Division^A (Central Pacific)

and 2nd Marine Division^A

^A = amphibious assault landing

• Battle of Tarawa 20–23 November 1943:
  • 2nd Marine Division^A
• Battle of Makin 20–23 November 1943:
  • 27th Infantry Division^A

1942

Aleutian Islands

Aleutian Islands campaign 3 June 1942 – 24 August 1943:

• 11 May 1943:
  • 7th Infantry Division^A (Aleutian Islands)

^A = amphibious assault landing

Papua

Part of the New Guinea campaign 23 July 1942 – 23 January 1943:

• 2 October 1942:
  • 32nd Infantry Division (Papua)
• 22 April 1944:
  • 41st Infantry Division (Papua)

Guadalcanal

Guadalcanal campaign 7 August 1942 – 21 February 1943:

• 7 August 1942:
  • 1st Marine Division^A (Guadalcanal)
• 13 October 1942:
  • Americal Division (Guadalcanal)
• 4 January 1943:
  • 2nd Marine Division (Guadalcanal)

and 25th Infantry Division

^A = amphibious assault landing

1943

New Guinea

New Guinea campaign 24 January 1943 – 31 December 1944:

• 17 February 1943:
  • 43rd Infantry Division (New Guinea)
• 29 February 1944:
  • 1st Cavalry Division (New Guinea)
• 30 March 1944:
  • 93rd Infantry Division (New Guinea)
• 22 April 1944:
  • 24th Infantry Division^A (New Guinea)
• 14 June 1944:
  • 6th Infantry Division^A (New Guinea)
• 18 July 1944:
  • 31st Infantry Division^A (New Guinea)
• 18 November 1944:
  • 11th Airborne Division (New Guinea)
• 6 December 1944:
  • 38th Infantry Division (New Guinea)
• 18 December 1944:
  • 33rd Infantry Division^A (New Guinea)

and 32nd Infantry Division^{A / A}, 41st Infantry Division^{A / A}

^AirA = air assault, ^A = amphibious assault landing

• Salamaua–Lae campaign 22 April – 16 September 1943:
  • 41st Infantry Division
  • Landing at Nadzab 5 September 1943:
    • 503rd Parachute Infantry Regiment^AirA
• Landing at Saidor 2 January 1944 – 10 February 1944:
  • 32nd Infantry Division^A
• Battle of Hollandia 22 April – ???:
  • 24th Infantry Division^A
  • 41st Infantry Division^A
• Landing at Aitape 22 April – 4 May 1944:
  • 32nd Infantry Division^A
  • 41st Infantry Division^A
• Battle of Lone Tree Hill 17 May – 2 September 1944:
  • 6th Infantry Division
• Battle of Morotai 15 September – 4 October 1944
  • 31st Infantry Division^A
  • 33rd Infantry Division^A
  • 93rd Infantry Division
• Battle of Biak 27 May – 17 August 1944:
  • 24th Infantry Division
  • 41st Infantry Division^A
• Battle of Driniumor River 10 July – 25 August 1944:
  • 32nd Infantry Division
  • 112th Cavalry Regiment
  • 43rd Infantry Division (unengaged reserve)
• Battle of Sansapor 30 July – 31 August 1944:
  • 6th Infantry Division^A

minor clashes with enemy forces:

• 1st Cavalry Division (New Guinea)
• 38th Infantry Division (New Guinea)

Northern Solomons

Solomon Islands campaign starting with the New Georgia campaign 22 February 1943 – 21 November 1944:

• 22 July 1943:
  • 37th Infantry Division (Northern Solomons)
• 1 November 1943:
  • 3rd Marine Division^A (Treasury-Bougainville operation)

and Americal Division 25th Infantry Division 43rd Infantry Division^A 93rd Infantry Division

^A = amphibious assault landing

• New Georgia campaign 30 June – 7 October 1943:
  • 25th Infantry Division
  • 37th Infantry Division
  • 43rd Infantry Division^A
• Bougainville campaign 1 November 1943 – 21 August 1945:
  • Landings at Cape Torokina 1–3 November 1943:
    • 3rd Marine Division^A
  • Americal Division
  • 37th Infantry Division
  • 93rd Infantry Division

Bismarck Archipelago

Bismarck Archipelago 15 December 1943 – 27 November 1944:

• 24 April 1944:
  • 40th Infantry Division (Bismarck Archipelago)

and 1st Marine Division^A 1st Cavalry Division^A 93rd Infantry Division (partial)

^A = amphibious assault landing

• Battle of Arawe 15 December 1943 – 24 February 1944:
  • 112th Cavalry Regiment^A
• Battle of Cape Gloucester 26 December 1943 – 16 January 1944:
  • 1st Marine Division^A
• Battle of Los Negros 29 February 1944 – 18 May 1944:
  • 1st Cavalry Division^A

1944

Eastern Mandates

Allied landings on Kwajalein & Eniwetok during the Marshall Islands campaign 31 January - 14 June 1944:

• 31 January 1944:
  • 4th Marine Division^A (Occupation of Kwajalein and Majuro Atolls)

and 7th Infantry Division^A 27th Infantry Division (106th Regiment)

^A = amphibious assault landing

• Battle of Kwajalein 31 January – 3 February 1944:
  • 4th Marine Division^A
  • 7th Infantry Division^A
• Battle of Eniwetok 17 February – 23 February 1944:
  • 22nd Marine Regiment^A
  • 106th Infantry Regiment^A

Western Pacific

Mariana and Palau Islands campaign 15 June 1944 – 2 September 1945:

• 21 July 1944:
  • 77th Infantry Division^A (Western Pacific)
• 17 September 1944:
  • 81st Infantry Division^A (Western Pacific)

and 1st Marine Division^A 2nd Marine Division^{A / A} 3rd Marine Division^A 4th Marine Division^{A / A} 27th Infantry Division

^A = amphibious assault landing

• Battle of Saipan 15 June – 9 July 1944
  • 2nd Marine Division^A
  • 4th Marine Division^A
  • 27th Infantry Division
• Battle of Guam 21 July – 10 August 1944
  • 3rd Marine Division^A
  • 77th Infantry Division^A
• Battle of Tinian 24 July – 1 August 1944
  • 2nd Marine Division^A
  • 4th Marine Division^A
• Battle of Peleliu 15 September – 27 November 1944
  • 1st Marine Division^A
  • 81st Infantry Division
• Battle of Angaur 17 September – 22 October 1944
  • 81st Infantry Division^A

Leyte

Allied landings and liberation of Leyte 17 October 1944 – 1 July 1945:

• 20 October 1944:
  • 96th Infantry Division^A (Leyte)

and 1st Cavalry Division^A 7th Infantry Division^A 24th Infantry Division^A 32nd Infantry Division 38th Infantry Division 77th Infantry Division Americal Division

^A = amphibious assault landing

Luzon

Allied landings and liberation of Luzon 15 December 1944 – 4 July 1945:

• 1st Cavalry Division 6th Infantry Division^A 11th Airborne Division^{AirA / A} 24th Infantry Division^A 25th Infantry Division 32nd Infantry Division 33rd Infantry Division 37th Infantry Division^A 38th Infantry Division^A 40th Infantry Division^A 43rd Infantry Division^A

^AirA = air assault, ^A = amphibious assault landing

1945

Assault and occupation of Iwo Jima

Battle of Iwo Jima 19 February – 26 March 1945:

• 19 February 1945:
  • 5th Marine Division^A (Assault and occupation of Iwo Jima)

and 3rd Marine Division 4th Marine Division^A

^A = amphibious assault landing

Southern Philippines

Liberation of the Southern Philippines during the Philippines campaign 27 February - 4 July 1945:

• 11th Airborne Division Americal Division 24th Infantry Division 31st Infantry Division 40th Infantry Division 41st Infantry Division 77th Infantry Division

Ryukyus

Allied landings on Okinawa 26 March - 2 July 1945:

• 1 April 1945:
  • 6th Marine Division^A ( Okinawa)

and 1st Marine Division^A 2nd Marine Division 7th Infantry Division^A 27th Infantry Division 77th Infantry Division^A 96th Infantry Division^A

^A = amphibious assault landing

• no combat:
  • 98th Infantry Division (Hawaii)