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 Tonga A provisional target date of May 1944 was set with the code-name 'Overlord' decided upon. A joint Anglo-American planning staff was created under Lieutenant-General Frederick E. Morgan, who was given the title of Chief of Staff to the Supreme Allied Commander (COSSAC). Early drafts of Overlord called for the commitment of airborne forces to support the ground forces and protect their landing areas. Operation Skyscraper, for example, called for the deployment of two airborne divisions to support the beach landings that would be made by five infantry divisions. One airborne division would land near Caen, and another on the east