The landing of Allied forces on the shores of Normandy on June 6, 1944 was the greatest amphibious invasion in history, and while the valor of the men involved is obvious, technology and innovation also played a crucial part. Illustrated throughout with photographs, maps, and documents, this fascinating look at the campaign explains the usage of tank-carrying gliders, swimming tanks, Mulberry harbors, the modified tanks known as Hobart's Funnies, and radio and radar aids that ensured landing craft arrived on the right beaches and combat aircraft overhead were controlled.