It was a cloudy, breezy morning on Tuesday, June 6, 1944 as the largest seaborne invasion in history began when British, Canadian and American troops set off across the unpredictable, dangerous English Channel from Portsmouth, England. Their destination: the beaches at Normandy, France. As the 5000-ship convoy carrying over 150,000 men and nearly 30,000 vehicles made its way across the choppy channel, thousands of paratroopers and glider troops were already on the ground behind enemy lines,...