List of formations of the United States Army during World War II

This is a list of formations of the United States Army during the World War II. Many of these formations still exist today, though many by different designations. Included are formations that were placed on rolls, but never organized, as well as "phantom" formations used in the Allied Operation Quicksilver deception of 1944&mdash;these are marked accordingly.

Army groups

 * 1st Army Group.svg 1st Army Group ("phantom" formation)
 * US 6th Army Group.svg 6th Army Group
 * 12th Army Group.svg 12th Army Group
 * US 15th Army Group.png 15th Army Group

Field armies

 * First Allied Airborne Army.svg First Allied Airborne Army
 * US Army 1st Army SSI Prior to 1950.png First United States Army
 * US Army 2nd Army SSI Prior to 1950s.png Second United States Army
 * United States Army Central CSIB.svg Third United States Army
 * Fourth United States Army CSIB.svg Fourth United States Army
 * United States Army North CSIB.svg Fifth United States Army
 * US Army 6th Army SSI WW2.png Sixth United States Army
 * US Seventh Army SSI.svg Seventh United States Army
 * Eighth United States Army CSIB.svg Eighth United States Army
 * US Ninth Army patch.svg Ninth United States Army
 * US Tenth Army SSI.svg Tenth United States Army
 * 14th Army.svg Fourteenth United States Army ("phantom" formation)
 * 15th US Army SSI.svg Fifteenth United States Army

Corps

 * U.S. I Corps CSIB.svg I Corps
 * 1st Armored Corps SSI.svg I Armored Corps
 * II Corps.patch.gif II Corps
 * III Armored Corps Insignia.svg III Corps
 * US IV Corps SSI.svg IV Corps
 * V Corps.svg V Corps
 * US VI Corps SSI.png VI Corps
 * US VII Corps SSI.png VII Corps
 * US VIII Corps SSI.png VIII Corps
 * US IX Corps SSI.png IX Corps
 * US X Corps SSI.png X Corps
 * US XI Corps SSI.svg XI Corps
 * XII CORPS SSI.gif XII Corps
 * USA - XIII Corps.png XIII Corps
 * US XIV Corps patch.svg XIV Corps
 * US XV Corps SSI.svg XV Corps
 * XVI Corps SSI.svg XVI Corps
 * XVIII Airborne Corps CSIB.svg XVIII Airborne Corps
 * XIX Corps SSI.svg XIX Corps
 * XX Corps ssi.gif XX Corps
 * XXI CORPS SSI.gif XXI Corps
 * XXII Corps SSI.svg XXII Corps
 * XXIII Corps SSI.gif XXIII Corps
 * XXIV Corps SSI.gif XXIV Corps
 * US XXXIII Corps SSI.png XXXIII Corps ("phantom" formation)
 * XXXVI Corps SSI.svg XXXVI Corps
 * XXXVII Corps ("phantom" formation)

Divisions
Airborne, armored, cavalry, infantry, and mountain divisions are grouped separately. The numbering system for the airborne and mountain divisions are a continuation of the infantry numbering system&mdash;"phantom" formations are an exception to that numbering system.

Airborne divisions

 * USA - 6 ABN DIV.svg 6th Airborne Division ("phantom" formation)
 * USA - 9 ABN DIV.svg 9th Airborne Division ("phantom" formation)
 * 11th Airborne Division.patch.svg 11th Airborne Division
 * USA - 13 ABN DIV.svg 13th Airborne Division
 * 15th Airborne Division (unorganized)
 * USA - 17 ABN DIV.svg 17th Airborne Division
 * 18 ABN DIV SSI.jpg 18th Airborne Division ("phantom" formation)
 * 21st Airborne Division SSI.svg 21st Airborne Division ("phantom" formation)
 * 82nd Airborne Division CSIB.svg 82nd Airborne Division
 * US 101st Airborne Division patch.svg 101st Airborne Division
 * 135 ABN DIV SSI.jpg 135th Airborne Division ("phantom" formation)

Armored divisions

 * United States Army 1st Armored Division CSIB.svg 1st Armored Division
 * United States Army 2nd Armored Division CSIB.svg 2nd Armored Division
 * 3rd US Armored Division SSI.svg 3rd Armored Division
 * 4th US Armored Division SSI.svg 4th Armored Division
 * 5th US Armored Division SSI.svg 5th Armored Division
 * 6th US Armored Division SSI.svg 6th Armored Division
 * 7th US Armored Division SSI.svg 7th Armored Division
 * 8th US Armored Division SSI.svg 8th Armored Division
 * 9th US Armored Division SSI.svg 9th Armored Division
 * 10th US Armored Division SSI.svg 10th Armored Division
 * 11th US Armored Division SSI.svg 11th Armored Division
 * 12th U.S. Armored Division CSIB.svg 12th Armored Division
 * 13th US Armored Division SSI.svg 13th Armored Division
 * 14th US Armored Division SSI.svg 14th Armored Division
 * 15th US Armored Division SSI.svg 15th Armored Division ("phantom" formation)
 * 16th US Armored Division SSI.svg 16th Armored Division
 * 18th Armored Division (constituted but never activated)
 * 19th Armored Division (constituted but never activated)
 * 20th US Armored Division SSI.svg 20th Armored Division
 * 21st Armored Division (constituted but never activated)
 * 22nd Armored Division (constituted but never activated)
 * 25th US Armored Division SSI.png 25th Armored Division ("phantom" formation)
 * 39th US Armored Division SSI.svg 39th Armored Division ("phantom" formation)

Cavalry divisions

 * 1st Cavalry Division Patch.svg 1st Cavalry Division
 * US 2nd Cavalry Division.svg 2nd Cavalry Division

Infantry divisions

 * 1st Infantry Division SSI (1918-2015).svg 1st Infantry Division
 * 2nd Infantry Division (US) SSI.png 2nd Infantry Division
 * 3rd Infantry Division SSI (1918-2015).svg 3rd Infantry Division
 * 4ID Patch PNG.png 4th Infantry Division
 * US 5th Infantry Division.svg 5th Infantry Division
 * 6th Infantry Division.svg 6th Infantry Division
 * 7th Infantry Division SSI (1973-2015).svg 7th Infantry Division
 * 8th Infantry Division patch.svg 8th Infantry Division
 * 9th Infantry Division patch.svg 9th Infantry Division
 * US 11th Infantry Division.svg 11th Infantry Division ("phantom" formation)
 * WWI14DNG.png 14th Infantry Division ("phantom" formation)
 * WWI17D.png 17th Infantry Division ("phantom" formation)
 * 22nd Inf Div SSI.jpg 22nd Infantry Division ("phantom" formation)
 * 24 Infantry Division SSI.svg 24th Infantry Division
 * 25th Infantry Division CSIB.svg 25th Infantry Division
 * Yankee Division.svg 26th Infantry Division
 * 27th Infantry Division SSI.svg 27th Infantry Division
 * 28th Infantry Division SSI (1918-2015).svg 28th Infantry Division
 * 29th Infantry Division SSI.svg 29th Infantry Division
 * 30th Infantry Division SSI.svg 30th Infantry Division
 * 31st ID SSI.svg 31st Infantry Division
 * 32nd infantry division shoulder patch.svg 32nd Infantry Division
 * 33rd Infantry Division SSI.svg 33rd Infantry Division
 * 34th 'Red Bull' Infantry Division SSI.svg 34th Infantry Division
 * 35th Infantry Division SSI.svg 35th Infantry Division
 * 36th Infantry Division CSIB.svg 36th Infantry Division
 * 37th Infantry Division CSIB.svg 37th Infantry Division
 * 38th Infantry Division SSI.svg 38th Infantry Division
 * 40th Infantry Division CSIB.svg 40th Infantry Division
 * 41st Infantry Division SSI.svg 41st Infantry Division
 * 42nd Infantry Division SSI.svg 42nd Infantry Division
 * 43rd Infantry Division CSIB.svg 43rd Infantry Division
 * 44 INF DIV SSI.svg 44th Infantry Division
 * 45thIBCTSSI.png 45th Infantry Division
 * 46th Infantry Division ("phantom" formation)
 * 48th Infantry Division patch, Ghost Division, WWII Era.JPG 48th Infantry Division ("phantom" formation)
 * US 50th Infantry Division.svg 50th Infantry Division ("phantom" formation)
 * US 55th Infantry Division SVG.svg 55th Infantry Division ("phantom" formation)
 * 59 INF DIV SSI.svg 59th Infantry Division ("phantom" formation)
 * 61st Infantry Division (constituted but never activated)
 * 62nd Infantry Division (constituted but never activated)
 * 63rd Infantry Division SSI.svg 63rd Infantry Division
 * 65th Infantry Division SVG.svg 65th Infantry Division
 * 66th Infantry Division shoulder sleeve insignia.jpg 66th Infantry Division
 * 67th Infantry Division (constituted but never activated)
 * 68th Infantry Division (constituted but never activated)
 * US 69th Infantry Division.svg 69th Infantry Division
 * 70th Infantry Division patch.svg 70th Infantry Division
 * US 71st Infantry Division.svg 71st Infantry Division
 * 72nd Infantry Division (constituted but never activated)
 * 73rd Infantry Division (constituted but never activated)
 * 74th Infantry Division (constituted but never activated)
 * 75e Division d'Infanterie (USA).svg 75th Infantry Division
 * 76 Inf Div SSI.svg 76th Infantry Division
 * 77th Infantry Division.patch.jpg 77th Infantry Division
 * 78th Infantry Division SSI.svg 78th Infantry Division
 * 79th Infantry Division SSI.svg 79th Infantry Division
 * 80th Inf Div SSI SVG.svg 80th Infantry Division
 * US Army 81st Infantry Division SSI.svg 81st Infantry Division
 * 83rd Infantry Division SSI.svg 83rd Infantry Division
 * US 84th Infantry Division.svg 84th Infantry Division
 * 85th Division SSI.svg 85th Infantry Division
 * 86 Inf Div SSI.jpg 86th Infantry Division
 * US 87th Infantry Division.svg 87th Infantry Division
 * 88th Infantry Division SSI.svg 88th Infantry Division
 * 89th Regional Readiness Command SSI.svg 89th Infantry Division
 * 90th Infantry Division.patch.svg 90th Infantry Division
 * US 91st Infantry Division.svg 91st Infantry Division
 * US 92nd Infantry Division SVG.svg 92nd Infantry Division
 * US 93rd Infantry Division.png 93rd Infantry Division
 * 94th Regional Readiness Command SSI.svg 94th Infantry Division
 * 95TrainingDivSSI SVG.svg 95th Infantry Division
 * 96th Infantry Division SSI.svg 96th Infantry Division
 * 97THID.svg 97th Infantry Division
 * 98th Infantry Division shoulder sleeve insignia.svg 98th Infantry Division
 * US 99th Infantry Division.svg 99th Infantry Division
 * 100th Infantry Division SSI.svg 100th Infantry Division
 * 102 INF DIV SSI.svg 102nd Infantry Division
 * US 103rd Infantry Division.svg 103rd Infantry Division
 * 104TrngDivLdrTrngSSI.svg 104th Infantry Division
 * 105th Infantry Division (constituted but never activated)
 * 106Infantry Division.svg 106th Infantry Division
 * 107th Infantry Division (constituted but never activated)
 * 108th Infantry Division ("phantom" formation - activated following the war as the 108th Airborne Division)
 * 109th Infantry Division ("phantom" formation)
 * 112th Infantry Division ("phantom" formation)
 * US 119th Infantry Division.png 119th Infantry Division ("phantom" formation)
 * 125th Infantry Division ("phantom" formation)
 * 130 INF DIV SSI.jpg 130th Infantry Division ("phantom" formation)
 * 141 INF DIV SSI.jpg 141st Infantry Division ("phantom" formation)
 * 157 INF DIV SSI.jpg 157th Infantry Division ("phantom" formation)
 * Americal patch.svg Americal Division
 * 12th Infantry Division SSI.svg Philippine Division

Mountain divisions

 * Shoulder sleeve insignia of the 10th Mountain Division (1944-2015).svg 10th Mountain Division