The I Armored Corps was a corps-sized formation of the United States Army that was active in World War II.

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I Armored Corps
Shoulder sleeve insignia of the I Armored Corps.
Active	1940–43[1]
Country	United States
Branch	United States Army
Type	Armoured corps
Engagements	World War II Operation Torch Tunisia Campaign Battle of Kasserine Pass
Commanders
Notable commanders	Adna R. Chaffee Jr. Charles L. Scott George S. Patton Jr.

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The Corps made landfall in Morocco in French North Africa during Operation Torch in November 1942, the Allied invasion of French North Africa, as the Western Task Force, under the command of Major General George S. Patton, the first all-American force to enter the war against the Germans.

Following the successful defeat of the Axis powers under Generalfeldmarschall Erwin Rommel in North Africa, in May 1943, I Armored Corps was redesignated as the Seventh Army on 10 July 1943 while at sea en route to the Allied invasion of Sicily as the spearhead of Operation Husky.

• Established – 15 July 1940 – at Fort Knox, Kentucky under the command of Major General Adna R. Chaffee Jr.^[2][3]
• Change of command – November 1940 – Major General Charles L. Scott assumes command
• Change of command – 15 January 1942 – Major General George S. Patton assumes command^[4][5][6]
• Transfer of Headquarters – January 1942 – to Fort Benning, Georgia
• Training – 26 March 1942 – Patton designated to set up Desert Training Center^[5]
• Training – 10 April 1942 to 30 July 1942 – at Desert Training Center, California-Arizona Maneuver Area (DTC-CAMA)^[7][8]
• Planning – 30 July 1942 – 5 August 1942 – Patton and staff does initial planning for Operation Torch in Washington, DC
• Planning – 5 August 1942 – 21 August 1942 – Patton and staff does higher level planning for Operation Torch in London, England
• Tactical Deception – 11 September 1942 – I Armored Corps redesignated as Western Task Force to carry out Operation Torch.
• Combat Mission – Operation Torch – 8 November 1942 – landed near Casablanca
• Cessation of Tactical Deception – 9 January 1943 – Western Task Force redesignated as I Armored Corps
• Change of command – 4 March 1943 – Patton reassigned to command II Corps after Major General Lloyd Fredendall is relieved following the loss at the Battle of Kasserine Pass^[9][10]
• Change of command – 15 April 1943 – Lieutenant General Patton resumes command^[11]
• Redesignated – 10 July 1943 – I Armored Corps becomes U.S. Seventh Army^[1]

• 3rd Infantry Division – 1 February 1943 to 15 July 1943
• 9th Infantry Division – 25 December 1942 to May 1943^[12]
• 2nd Armored Division - 25 December 1942 to 15 July 1943