Captain Kosaku Aruga was the commander of the "Yamato" battleship when this ship was sunk on 4 April 1945. Aruga was posthumously promoted to Vice Admiral.
Promotions:
24 November 1917: Midshipman (Shôi-Kohosei)
1 August 1918: Warrant Officer (Shôi)
1 December 1920: Sub-Lieutenant (Chûi)
1 December 1924: Lieutenant (Tahi-i)
30 November 1929: Lieutenant Commander (Shôsa)
15 November 1935: Commander (Chûsa)
15 November 1940: Captain (Daisa)
7 April 1945: Vice Admiral (Chûjô) - posthumously
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