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 Market Garden in the 82nd Airborne Division's zone, Groesbeek ridge. Seizure and defence of these hills was considered to be vital to holding the highway bridges. The plan of action consisted of two operations: Market would employ four of the six divisions of the First Allied Airborne Army. The U.S. 101st Airborne Division, under Major General Maxwell D. Taylor, would drop in two locations just north of XXX Corps to take the bridges northwest of Eindhoven at Son and Veghel. The 82nd Airborne Division, under Brigadier General James M. Gavin, would drop northeast of them to take the bridges at Grave and