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Subject
- Cryptography6
- Electronic intelligence[remove]6
- Military intelligence6
- World War, 1939-19456
- Confidential communications4
- Eavesdropping2
- Allied Forces. Southwest Pacific Area. Allied Intelligence Bureau1
- Cryptographers1
- Holocaust, Jewish (1939-1945)1
- Midway, Battle of, 19421
- Naval operations, American1
- Naval operations, Japanese1
- Officers1
- Rochefort, Joe, 1900-19761
- Secret service1
- Sissons, D. C. S. (David Carlisle Stanley), 1925-20061
- United States. Navy1
- World War (1939-1945)1