Book about secret Japanese submarine aircraft carrier in WWII

Author John Geoghegan’s book Operation Storm ( was just released, which tells the true story of three submarine aircraft carriers built by Japan to launch surprise terror attacks against the U.S. mainland. For his book, we searched U.S. Navy records, captured Japanese records, U.S. Government news reels, and newspaper archives about the I-400 class of Japanese submarines during WWII.

Facility: NARA
Result: The project produced 465 images and videos.

john cover jap_vessels_endofwar4 john ack geoghegan_0973

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