Bletchley Park's Secret Workforce of 10,000
At its peak, Bletchley Park employed 10,000 peopleâmostly womenâwho broke Axis codes while being forbidden from telling even their families what they did for decades.
The shadow war of ciphers, double agents, and intelligence coups that turned the tide.
6 factsAt its peak, Bletchley Park employed 10,000 peopleâmostly womenâwho broke Axis codes while being forbidden from telling even their families what they did for decades.
A network of Australian and island scouts hidden behind Japanese lines provided crucial intelligence that helped win the Guadalcanal campaign.
American codebreakers cracked Japan's top diplomatic cipher months before Pearl Harborâyet the intelligence failed to prevent the attack.
A daring boarding action on a sinking German U-boat captured an intact Enigma machine and current codebooks, giving the Allies a critical breakthrough in the Battle of the Atlantic...
A secret American program began decrypting Soviet intelligence messages in 1943 and continued for 37 years, revealing Soviet espionage networks embedded throughout the West.
A General Post Office engineer built Colossus, the world's first programmable electronic computer, to crack German codesâthen was told to destroy it and keep quiet about it.