D-Day, June 6, 1944 D-Day was June 6, 1944. Over 160,000 troops from America, Britain, Canada, free France, Poland, and other nations landed along a 50-mile stretch of the Normandy coast of France. It was the largest amphibious invasion force in world history, supported by 5,000 ships with 195,700 navy personnel and 13,000 aircraft. On that…