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apr 1, 1941 - U.S. intelligence

Description:

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.

Added to timeline:

Pearl's Harbor

ByAnna
8 Mar 2018
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Date:

apr 1, 1941
Now
~ 84 years ago
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