XVIII Corps deployed to Europe on 17 August 1944 and became the XVIII Airborne Corps on 25 August 1944 at Ogbourne St. George, England, assuming command of the 82nd and 101st Airborne Divisions, as part of the preparation for Operation Market Garden. Prior to this time, the two divisions were assigned to VII Corps and jumped into Normandy during Operation Overlord, the Allied invasion of Normandy, as part of VII Corps. Major General Matthew Bunker Ridgway, a highly professional, competent and experienced airborne commander who had led the 82nd Airborne Division in Sicily, Italy and Normandy, was chosen to command the corps, which then consisted of the 82nd and 101st Airborne Divisions and was part of the newly created First Allied Airborne Army.