History Channel - Spy Web International Espionage (1999) Part 5 Code Breakers

Spy Web International Espionage uncovers some of the most fascinating spying and espionage stories which helped win victory in the most harrowing of circumstances. Throughout history, espionage and covert operations have been powerful but shadowy forces. Hidden deep within the daily workings of governments is a secret world of mystery, danger, and intrigue. A world where deception is a form of art. Where people are never who they say they are. Where the tiniest observation has the power to save a nation or spark a global war. The world of the spy is what most of us associate with popular fiction and film but the true story can be more fascinating, surprising, and important. From World War I onward, these revelations alter the way in which history is viewed–and the bravery of the intelligence services–especially those working behind enemy lines. This is the story of spies, intelligence operations and deceptions that changed the course of history.

Part 5 Code Breakers

The fascinating story of 20th Century's efforts by all sides to break down the enemy's signals security, to protect the sender's signals and penetrate the enemy's secret communications. Many battles in the last 100 years have been won or lost because one side or the other could read its opponent's intercepted messages. From the famous Zimmerman Telegram in April 1917 through to the breaking of the Japanese Purple codes and the more recent Russian codes, trace the history of 20th Century code breaking.

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