history · 25 May 1942 · 82 years ago
Japanese submarine I-9 launched her floatplane for a reconnaissance mission over Adak and Kanaga islands in the Aleutian Islands; on the same day, the Japanese Northern Area Fleet under Admiral Boshiro Hosogaya departed Japan for the conquest of nearby Attu and Kiska islands. On the US side, the Japanese radio message intercepted on 20 May 1942 was partially decrypted, giving the Americans a good idea of the scale of the Midway attack; the Americans missed one critical component, however, as the part regarding the battleship fleet, with Admiral Isoroku Yamamoto's personal participation aboard battleship Yamato, was not decrypted.
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