Here’s what happened during the largest amphibious invasion ever undertaken

D-Day — the military term for the first day of the Normandy landings — was the largest amphibious invasion ever undertaken and laid the foundations for the Allied defeat of Germany in World War II.

D-Day — the military term for the first day of the Normandy landings — was the largest amphibious invasion ever undertaken and laid the foundations for the Allied defeat of Germany in World War II.