1 abr 1941 año - U.S. intelligence
Descripción:
U.S. intelligence officers continue to monitor Japanese secret messages. In a program code-named Magic, U.S. intelligence uses a machine to decode Japan's diplomatic dispatches. Washington does not communicate all the available information to all commands, including Short and Kimmel in Hawaii.
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fecha:
1 abr 1941 año
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~ 84 years ago