On Mon. 27 Apr 1942 Joseph Rochefort's cryptanalytic team at Pearl Har.....
Joseph Rochefort's cryptanalytic team at Pearl Harbor, US Territory of Hawaii decrypted a radio message from Nobutake Kondo to Tokyo, Japan requesting navigation charts of the Aleutian Islands area and latest intelligence at AOE and KCN (which was determined to be Dutch Harbor and Kodiak in the Aleutian Islands) Facility
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Fred Vogels
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