David Kahn, who holds a PhD in history from Oxford, is the author of The Codebreakers, Hitler’s Spies, and Seizing the Enigma. He has written articles on codes and intelligence for many magazines, ranging from Playboy to the New York Times Magazine and Historical Journal. He lives in Great Neck, New York.
~~tag-text~~
For almost four desperate years between 1939 and 1943, British and American navies fought a savage, losing battle against German submarine wolf packs. The Allies might never have turned the tide of that historic battle without an intelligence coup. The ra... SEE MORE