What happened to the Allied armies in Normandy in the months after D-Day? Why, after the initial success of the landings, did their advance stall a few miles inland? How did the Germans, deprived of air support, hold off such massive forces for months? A fresh and incisive examination of this most crucial campaign--with accounts from veterans on both sides--sheds new light on its demands and difficulties, as well as the plans and performance of all the commanders involved.