SIGINT Role In History Page

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• World Wars
• Especially World Wars II and the Cold War, but not forgetting the rest.
• The ENIGMA Crypto Machine of World War II
• Material regarding the Enigma cypher machines of the Geman forces in WWII and the breaking of the codes by the Allies - Namely the British, aided by the US. Polish sources had a role also.
• SIGINT Role In the Cuban Missile Crisis
• Tonkin Gulf
• ECHELON
• NSA Document Release
• Links to various pages on the NSA official site that relate by subject matter to FOIA and declassified document release in the last few years. These files may be linked in more than one category or cover more than one subject matter.
• The Liberty
• USS Pueblo
• Historical Notes and Misc
• Short notes or articles or single web pages that reflect SIGINT in some way in history. Normally not full sites, just a page or two.


• Cryptologic Documents in the Navy Department Library
• "This collection is composed of naval, military, intelligence, diplomatic, and technical studies prepared largely by the US military utilizing decoded and translated enemy communications. The bulk of the material deals with World War II, though some studies cover topics ranging from World War I to the attack on USS Liberty in 1967. These documents describe military operations, intelligence organizations and activities, communications security and intercepts, code breaking, codes, and ciphers. The collection was transferred from the Naval Security Group at Fort Meade, Maryland, to the Navy Department Library in the early 1990s."

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