Military history of the United Kingdom during World War II allowed them to be withdrawn from the line and redeployed to Greece where they were urgently needed to help quell the civil war. Montgomery and Eisenhower had long been debating the merits of a broad front attack strategy versus concentrating power in one area and punching through German lines. Eisenhower favoured the former, and Montgomery the latter. However, in late 1944, logistic problems meant that the former was temporarily out of the question. Montgomery conceived Operation Market Garden to implement a narrow front strategy. The idea was to land airborne forces in the Netherlands to take vital bridges over the
Operation Berlin (Arnhem) Siegfried Line and advance into the Ruhr, Germany’s industrial heartland. The operation required the 1st British Airborne Division and the American 82nd and 101st Airborne Divisions to seize several bridges over rivers and canals in the Netherlands, the main target being the bridge at Arnhem. This would allow General Brian Horrocks' XXX Corps to advance approximately 30 miles up an 'airborne corridor' to relieve the 10,095 men flown into Arnhem, charged to capture and hold the bridge over the lower Rhine and so enable the Allied forces to advance into the Ruhr valley. They were told they would be relieved