The Allied invasion of occupied France began with the delivery of three airborne and six infantry divisions onto a 60-mile stretch of the Normandy coast. Accomplishing this involved over 1,200 transport aircraft, 450 gliders, 325 assorted warships and over 4,000 landing vessels. Operation Overlord, as the invasion was code-named, remains the largest amphibious invasion in history. This books tells the story hour-by-hour as it unfurled on the beaches, as experienced by the Allied troops. "D-Day: The First 72 Hours" covers the initial attacks made by airborne and special forces until the point where all the beachheads were secured.