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
1st Airborne Division (United Kingdom) same objectives as "Comet" but to be carried out by three divisions of the First Allied Airborne Army. Operation "Market Garden" was an airborne assault by three divisions in the Netherlands in September 1944, including the British 1st and the American 82nd and 101st, to secure key bridges and towns along the expected Allied axis of advance. Farthest north, 1st Airborne, supported by the 1st Polish Parachute Brigade, landed at Arnhem to secure bridges across the Nederrijn. Initially expecting an easy advance, XXX Corps, under Lieutenant General Brian Horrocks, to reach the airborne force at Arnhem within two to three