German submarine U-559

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1	A Global Forum for Naval Historical Scholarship International Journal of Naval History Volume 1 Number 1 April 2002 Add to Reading List Source URL: www.ijnhonline.org Language: English - Date: 2012-02-02 08:23:08 Bletchley Park Military intelligence Ultra Enigma machine Battle of the Atlantic Karl Dönitz U-boat Enigma German submarine U-559 Cryptography World War II Maritime history