Operation Mincemeat: The Corpse That Fooled Hitler

British intelligence obtained the body of a homeless Welshman named Glyndwr Michael, dressed him as a Royal Marines officer 'Major William Martin,' and planted fake documents suggesting an Allied invasion of Greece instead of Sicily. They even created a fictional fiancée with love letters in his pocket. The body was released off the coast of Spain and found by German agents. Hitler was so convinced that he redirected the Panzer division from Sicily to Greece before the actual invasion. The true identity of the man wasn't confirmed until 1996.