Seizing the Enigma: The Race to Break the German U-Boat Codes 1939-1943 - Hardcover

Seizing the Enigma; The Race to Break the German U-Boat Codes, 1939-1943

Hardcover. Zustand: Very good. Zustand des Schutzumschlags: Very good. xii, 387, [1] pages. DJ is price clipped. Includes List of Maps, Illustrations. Preface, Preface to the 1998 Corrected Edition, Appendix: Enciphering with Naval Enigma, Notes, Bibliography, and Index. Chapters include A Staff School Memory; The Wreck of the Magdeburg; The Man, the Machine, the Choice; The Codebreaker and the Spy; Racing German Changes; Failure at Broadway Buildings; Phantoms; The Rotors; Royal Flags Wave Kings Above; In the Locked Drawer of the Krebs; Kisses; A Trawler Surprised; The Staff School Memory; "All This Rubbish?"; The Great Man Himself; When Sailors Look for Leaks; Blackout '42; The George Cross; Enter the Americans; SC 127; The Cavity Magnetron Clue; The U-Tankers; The Reckoning. David Kahn (b. February 7, 1930) is an American historian, journalist, and writer. He has written extensively on the history of cryptography and military intelligence. Kahn's first published book, The Codebreakers - The Story of Secret Writing (1967), has been widely considered to be a definitive account of the history of cryptography. David Kahn, a noted historian of codebreaking, provides a specialized part of the decryption story not previously detailed. He underscores the strategic importance of submarine warfare in the Atlantic, giving a balanced account of the ultimate importance of codebreaking in that area. High drama at sea, seizing the German codebooks and equipment, and analytical genius ashore were essential. Kahn describes both of these matching efforts expertly. "An absorbing and thoroughly well documented account" of WWII naval intelligence and the Allied hunt for the Nazi code machine known as the Enigma. From the start of World War II to mid-1943, British and American naval forces fought a desperate battle against German submarine wolfpacks. And the Allies might have lost the struggle at sea without an astounding intelligence coup. Here, the author brings to life the race to break the German U-boat codes. As the Battle of the Atlantic raged, Hitler's U-boats reigned. To combat the growing crisis, ingenious amateurs joined the nucleus of dedicated professionals at Bletchley Park to unlock the continually changing German naval codes. Their mission: to read the U-boat messages of Hitler's cipher device, the Enigma. They first found success with the capture of U-110,-which yielded the Enigma machine itself and a trove of secret documents. Then the weather ship Lauenburg seized near the Arctic ice pack provided code settings for an entire month. Finally, two sailors rescued a German weather cipher that enabled the team at Bletchley to solve the Enigma after a year-long blackout. In "a highly recommended account with a wealth of materials" Seizing the Enigma tells the story of a determined corps of people who helped turn the tide of the war." (Naval Historical Foundation). Derived from a Kirkus review: Ultra was the high-grade intelligence made available to the Allies throughout WW II, thanks to the UK's ability to read many of the Wehrmacht's Enigma ciphers. Messages sent via Kriegsmarine systems, however, were appreciably tougher to decode than those from Enigma machines employed by other branches of the Nazi military. As one result, Hitler's U-boats took a heavy toll on merchant shipping, threatening Great Britain's high-seas lifeline during the early years of the war. Newsday editor Kahn (Kahn on Codes, 1983) offers a wide-ranging appreciation of how the Royal Navy furnished the Oxbridge dons and other boffins posted to England's Bletchley Park the material they needed to decipher submarine signals. In brief, the high command authorized a series of attacks on German weather vessels gathering climatic data offshore Iceland. These forays, plus the fortuitous capture of several U-boats, paid off in up-to-the-minute rundowns on code-wheel settings, which allowed cryptanalysts to read tactical communiqués almost as quickly as sub captains. Consequently, the Admiralty was able to route convoys away from wolfpacks, Artikel-Nr. 81496

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