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More bizarre and mysterious acts of warfare, including an alien language with an unbreakable code, sinister clues in crosswords, and the British volunteers who were buried alive.
More bizarre and mysterious acts of warfare, including sex spies trained to soak-up secrets, physic spooks working their magic on Mussolini and nature turns on the Nazis - when birds go to war.
The British claim that an RAF pilot's incredible night vision comes from eating carrots. And Hukbalahap Rebels in the Philippines believe they have a new enemy - a vampire.