Secrets of World War II episode 7

Secrets of World War II episode 7: By early 1940, British codebreakers at Bletchley Park, working with information from the Poles, had begun to crack the German military codes produced on the Enigma cipher machine. Once this had been achieved, the challenge was how to prevent the Germans from finding out their codes had been broken. It was transmitted on a top-secret device capable of scrambling a message millions of different ways. The German high command was absolutely certain it was impossible to break. But the Allies did crack the enigma code, helping to shorten the war by years and save countless lives. How did Allied code-breakers decipher the unbreakable code? And why did their amazing accomplishment, "Cracking the Enigma Codes," remain classified for thirty years.
Find out how a tool originally designed for business became the world's most sophisticated military coding machine. Meet the mathematicians, chess masters and eccentrics of Britain's top-secret Bletchley Park -- and see how they overcame incredible odds to break Enigma. Examine a re-creation of the first electronic programmable computer and find out how it was able to read Hitler's most closely guarded commands. And learn how Allied code-breakers were crucial to victories in the Pacific, North Africa and on the beaches at Normandy.

During World War II, Bletchley Park was the main site for British codebreakers. The Government Code and Cypher School (GC&CS) was located there, and it was responsible for breaking German and other Axis powers' encrypted military communications. The work done at Bletchley Park is credited with significantly shortening the war and saving countless lives. The most famous codebreaker associated with Bletchley Park was Alan Turing, who made significant contributions to the cracking of the German Enigma code.

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