In the biggest amphibious invasion in history, 350,000 troops invaded this historic region in 1944
[DOC] [TLE] D-Day - World War II - HISTORY.com [PAR] Codenamed Operation Overlord, the battle began on June 6, 1944, also known 
as ... along a 50-mile stretch of the heavily fortified coast of France's Normandy 
region.