Operation Pegasus launched Operation Market Garden, an attempt by the British 2nd Army to bypass the Siegfried Line and advance into the Ruhr, Germany’s industrial heartland. The operation required the First Allied Airborne Army to seize several bridges over rivers and canals in the Netherlands, allowing ground forces to advance and cross the Lower Rhine at Arnhem. The 1st British Airborne Division dropped onto Arnhem on 17 September. They encountered far greater resistance than had been expected and only a small force were able to reach Arnhem road bridge. XXX Corps ground advance became delayed and without reinforcement this small force under
Operation Varsity Lippe Canal. To ensure that the operation was a success, Montgomery insisted that an airborne component be inserted into the plans for the operation, to support the amphibious assaults that would take place; this was code-named Operation Varsity. Three airborne divisions were initially chosen to participate in the operation, these being the British 6th Airborne Division, the U.S. 13th Airborne Division and the U.S. 17th Airborne Division, all of which were assigned to U.S. XVIII Airborne Corps, commanded by Major General Matthew B. Ridgway. One of these airborne formations, the British 6th Airborne Division, commanded by Major-General Eric Bols, was