In April 1945, the Japanese 70,000-ton battleship Yamato, armed with the first experimental atomic bomb, became the ultimate kamikaze on its way to join the Battle of Okinawa. But Yamato was sunk en route by overwhelming American air power. With America's own atomic program delayed, the invasion of Japan commenced in late 1945 with terrible casualties, as predicted, on both sides. By 1946, in their desperation for defense, the Japanese throw everything into their arsenal, including suicide frogmen and schoolkids flying crude rocket kamikazes.
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