bn:00565605n
Noun Named Entity
Categories: Articles with short description, Cryptography organizations, Defunct United States intelligence agencies, Military communications of the United States, Attack on Pearl Harbor
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OP-20-G  Naval Communications Annex  OP-20 G  Station NEGAT
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OP-20-G or "Office of Chief Of Naval Operations, 20th Division of the Office of Naval Communications, G Section / Communications Security", was the U.S. Navy's signals intelligence and cryptanalysis group during World War II. Wikipedia
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Sources
EN
OP-20-G or "Office of Chief Of Naval Operations, 20th Division of the Office of Naval Communications, G Section / Communications Security", was the U.S. Navy's signals intelligence and cryptanalysis group during World War II. Wikipedia
Wikipedia
EN
Wikidata
EN
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