Operation Overlord造句怎么写

Operation Neptune''' was the codename given to the initial naval assault phase of Operation Overlord; its mission, to gain a foothold on the continent.

The Battle of Normandy, codenamed Operation Overlord was the Allied invasion of Normandy, part of the Normandy Campaign.

" Normandy Campaign ：Also called Operation Overlord,Allied invasion of northern Europe in World War II that began on June 6, 1944, with the largest amphibious landing in history in Normandy, France. "