Operation Varsity a veteran division; it had taken part in Operation Overlord, the assault on Normandy in June the previous year. However, the U.S. 17th Airborne Division, under Major General William Miley, had been activated only in April 1943 and had arrived in Britain in August 1944, too late to participate in Operation Overlord. The division did not participate in Operation Market Garden. It did, however, participate in the Ardennes campaign but had yet to take part in a combat drop. The U.S. 13th Airborne Division, under Major General Eldridge Chapman, had been activated in August 1943 and was transferred to France
First Allied Airborne Army to secure several bridges over the River Rhine to aid the Allied advance into the North German Plain. The divisional headquarters for the 1st Airborne Division, along the 1st Airlanding Brigade and the Polish 1st Independent Parachute Brigade were to land at Nijmegen, 1st Parachute Brigade was to land at Arnhem, and 4th Parachute Brigade was to land at Grave. The driving force behind the creation of Comet was Field Marshal Bernard Montgomery, who disagreed with the 'broad front' strategy favoured by Eisenhower, in which all Allied armies in North-West Europe advanced simultaneously. Montgomery, however, believed that a single thrust