SIGINT: Die geheime Geschichte der Signalaufklärung in den Weltkriegen (Spionage)
20,91 €
From LORENZ to ENIGMA, Room 40 to Bletchley, SIGINT reveals the story of the secret signals of both world wars. Communicating in the chaos of war is complicated, but vital. Signallers and cryptographers in the Admiralty's famous Room 40 paved the way for the code-breakers of Bletchley Park in the Second World War.
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