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What’s the context? Polish cryptologists reveal they have cracked the Enigma code, 26 July 1939

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The three Polish codebreakers Marian Rejewski, Jerzy Rozycki and Henryk Zygalski

The 3 Polish codebreakers Marian Rejewski, Jerzy Rozycki and Henryk Zygalski ‘Il y a du nouveau’ On 26 July 1939, in the Pyry Forest south of Warsaw, Polish cryptologists revealed...

What’s the Context? 20 December 1917: formation of the Cheka, the first Soviet security and intelligence agency

...the revolution and neutralise political opposition. The Cheka, established on 20 December 1917, was in many ways a reincarnation of the Tsarist security service, the Okhrana, making use of its...

Margaret Thatcher and the Joint Intelligence Committee

...Deputy Governor of Southern Rhodesia (now Zimbabwe) after the British Government assumed direct rule of the rebellious colony. He was a key participant in the Lancaster House Conference, aiming finally...