First Allied Airborne Army divisions were initially chosen to take part in Varsity: the British 6th Airborne Division, the US 13th Airborne Division and the US 17th Airborne Division, all of which were assigned to US XVIII Airborne Corps. One of these airborne formations, the British 6th Airborne Division, was a veteran division; it had taken part in Operation Overlord and the assault on Normandy. However, the 17th Airborne Division had only been activated in April 1943 and had arrived in Britain in August 1944, too late to participate in Operation Overlord. The division had also been absent from Operation Market-Garden, and the only
XVIII Airborne Corps Western Allied invasion of Germany, the XVIII Airborne Corps, still under Ridgway, returned to the United States in June 1945 and was initially to take part in the invasion of Japan, codenamed Operation Downfall. However, the Japanese surrendered just weeks later and XVIII Airborne Corps was inactivated on 15 October 1945 at Fort Campbell, Kentucky. The CORPS was reactivated at Fort Bragg on 21 May 1951 under the command of Major General John W. Leonard. Since then, the corps has been the primary strategic response force, with subordinate units participating in over a dozen major operations (listed below) in both