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
550th Airborne Infantry Battalion (United States) regions subsided in 1943, the 550th was redesignated the 550th Glider Infantry Battalion and undertook glider training in Sicily. The unit was assigned, along with other Allied airborne units, to the 1st Airborne Task Force and participated in Operation Dragoon, the Allied invasion of Southern France, on 15 August 1944 where the 550th captured the town of Le Muy. The 550th Airborne was sent to Aldbourne, England in November 1944 after the 1st Airborne Task Force was disbanded. During the Battle of the Bulge in late December 1944 the 550th was attached to the 194th Glider Infantry Regiment, part of