Operation Mincemeat: The Most Successful Deception Of WW2 In 1943, British Intelligence launched Operation Mincemeat, one of the most extraordinary deceptions of WW2. A corpse, given the false identity of "Major William Martin," was planted off the coast of Spain carrying fake secret invasion plans to fool Hitler into protecting the wrong targets: Greece and Sardinia. This documentary dives deep into the intricate plot, the characters behind it and the dramatic revelation of the body's true identity, exposing a story that saved thousands of Allied lives and secured the vital invasion of Sicily.