"Geschichte 1941." . . "Guerre mondiale 1939-1945. Opérations. Guerre navale. Atlantique." . . "2. Verdenskrig 1939-1945" . . "World War, 1939-1945 Naval operations, British." . . "Enigma (Chiffriermaschine)" . . "Konvoj" . . "Guerre mondiale 1939-1945. Opérations. Guerre sous-marine. U 110." . . "Seekrieg." . . "World War, 1939-1945 Electronic intelligence Great Britain." . . "Kriegsbeute." . . "U 110." . . "ULTRA (Intelligence system)" . . "Atlanterhavet" . . . . "HISTORY Europe Western." . . "Operation (Militär)" . . "U 110 (Submarine)" . . "U-110 (Submarine)" . "World War, 1939-1945 Electronic intelligence Germany." . . "World War, 1939-1945 Naval operations Submarine." . . "World War, 1939-1945 Naval operations." . . "Grande-Bretagne. Boker-Cresswell, Joe (1901-1997)" . . "U-110 (Submarine)" . . "Schiffsversenkung." . . . . . . . . . . . . . . . "The secret capture : [U-110 and the enigma story]" . . . . . "The Secret Capture. [On the capture of the German submarine U.110 during the second world war. With plates.]"@en . . . . . . . . . . . . . "The secret capture. [An account of the capture of the German U.110 in 1941. With plates including portraits, and maps.]"@en . . . . . "The Secret Capture" . . . . . . . . . . . "The secret Capture" . . . "Electronic books"@en . "Das Geheimnis um U 110" . . . . . . . . . . "For fifteen years after the end of the war all official Admiralty records showed the German submarine U 110 as sunk on 9 May 1941 by the surface escorts of convoy OB. 318. As this book was the first to reveal, this was a deliberate deception, as the U-boat was actually captured and its contents fully investigated before being allowed to sink a day later, a fact skilfully kept from even the survivors of the submarine's crew. As the official historian of the naval war, Roskill had followed the party line when writing his authorised account, but provoked by exaggerated claims concerning a US Navy."@en . . "The secret capture" . "The secret capture"@en . . . . "World War, 1939-1945 Cryptography." . .