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Book, 1975
Current format, Book, 1975, 1st ed., Available .
Book, 1975
Current format, Book, 1975, 1st ed., Available . Offered in 0 more formats
Examines Allied intelligence and counter-intelligence operations during World War II, describing the cipher machine used to break German codes and the tactics, ruses, and deceptions employed to ensure the successful invasion of Normandy
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