As plans got under way for the Allied invasion of Sicily in June 1943, British counter-intelligence agent Ewen Montagu masterminded a scheme to mislead the Germans into thinking the next landing would occur in Greece. The innovative plot was so successful that the Germans moved some of their forces away from Sicily, and two weeks into the real invasion still expected an attack in Greece. This extraordinary operation called for a dead body, dressed as a Royal Marine officer and carrying false...