The+Invasion's+Execution

 **Execution Phase ** It was just after midnight on June 6, the American 82nd and 101st and British 6th Airborne Divisions landed by parachute and glider on the Cotentin Peninsula behind German lines in support of the amphibious landings only a few hours away. Throughout the previous month the Allies had conducted a bombing campaign against key areas of northern France to destroy German communications. In addition, French resistance, having received word of the impending invasion, sabotaged communication lines and railroads to delay German mobilization even more. The three airborne units, tasked with the further disruption of German capabilities, were to secure the flanks of the beaches, capture strategic bridges and causeways for Allied use, and destroy other key bridges that the German counterattack could utilize.

Around 5:00 A.M.  a sustained Allied naval bombardment and assaults by bomber aircraft commenced against the German defenses on Normandy. The seaborne troops then began their approach to the five beaches by transport ships. The first ashore were elements of the U.S. 4th Division, landing at approximately 6:30 A.M.  on Utah under intense German fire. South of their target zone they faced lighter resistance than anticipated, thus minimizing expected casualties, and advanced rapidly up the beach to gain their objective. Only a few minutes later elements of the U.S. 1st and 29th Divisions landed at Omaha, where intact obstacles and fierce opposition bogged down subsequent waves of soldiers and equipment. The congestion made the Americans easy targets for German gunners, resulting in the worst casualty rates of the entire invasion force—estimated at close to 95 percent for the first wave alone. Pinned by enemy positions atop the high bluffs that dominated the beach, many units suffered losses close to 60 percent and higher, which threatened the assault's success.