KÅsaku Aruga (æè³ 幸ä½, Aruga KÅsaku, August 21, 1897 â April 7, 1945), was a career officer in the Imperial Japanese Navy during World War II. He commanded the battleship Yamato during its final mission; Operation Ten-Go. In April 1945, under Operation-Ten GÅ, Yamato was assigned on a suicide mission against the American forces at the Battle of Okinawa. Given only enough fuel for a one-way mission and only a cruiser and eight destroyers as an escort, Yamato was to wreak havoc on the American landing operation, and to beach herself on the Okinawa shore as a coastal fortress. On April 7, 1945, Yamato was sunk by waves of U.S. Navy carrier-based aircraft. Aruga went down with his ship. He was posthumously promoted two steps in rank to vice admiral.
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