Operation Mincemeat — United Kingdom
MI5 officers Ewen Montagu and Charles Cholmondeley devise Operation Mincemeat — planting false Allied invasion plans on a corpse dressed as a Royal Marines officer and releasing it off Spain.
Operation Mincemeat was conceived by Ian Fleming and executed in April 1943. The body of Glyndwr Michael, a Welsh vagrant, was dressed as 'Major William Martin RM' and released from submarine HMS Seraph off Huelva. The forged documents convinced Hitler's High Command that the Allied invasion would target Sardinia and Greece rather than Sicily, diverting significant Axis forces.