Secret Operations
Covert missions, spy networks, and clandestine operations that changed the war
6 facts in this category
What was the name of the British operation that used a corpse dressed as an officer to deceive the Germans about the Allied invasion of Sicily?
Operation Mincemeat
The body was that of a Welsh vagrant named Glyndwr Michael, who was given the identity of "Major William Martin." The Germans were so thoroughly convinced the documents were real that they redirected forces away from Sicily.
Which Allied intelligence operation successfully turned every German spy in Britain into a double agent during World War II?
The Double Cross System (XX System)
MI5 managed to capture and "turn" every single German agent sent to Britain. By the wars end, they controlled the entire German spy network in the UK, feeding false information to the enemy.
Which Polish mathematician is credited with first breaking the Enigma machine cipher, years before Alan Turing?
Marian Rejewski
Rejewski and his colleagues at the Polish Cipher Bureau cracked Enigma in 1932 using pure mathematics. They shared their methods with Britain and France in 1939, giving the Allies a crucial head start.
What was "Operation Anthropoid" and what did it accomplish?
The assassination of Reinhard Heydrich, Reich Protector of Bohemia-Moravia and architect of the Holocaust, in May 1942
Heydrich was the only senior Nazi leader assassinated during the war. The operation was conducted by Czech and Slovak paratroopers trained in Britain. In revenge, the Nazis razed the village of Lidice.
What secret OSS operation parachuted agents directly into mainland Japan to prepare for a possible Allied invasion?
Operation Balsam — OSS operatives were infiltrated into Japan in the final months of the war through neutral intermediaries
The OSS ran extremely dangerous operations into Japan proper. Some agents were inserted via submarine or through neutral countries. The atomic bombing made a full invasion unnecessary, but the groundwork had been laid for what would have been the most dangerous spy mission of the war.
What British deception operation convinced Hitler that the D-Day invasion would land at Pas-de-Calais rather than Normandy?
Operation Bodyguard / FORTITUDE
The Allies created an entire fictional army group under General Patton, complete with fake radio traffic, inflatable tanks, and double agents feeding false information. Hitler kept 19 divisions at Pas-de-Calais even after D-Day began.