The Imperial Japanese Navy General Staff was the highest organ within the Imperial Japanese Navy. In charge of planning and operations, it was headed by an Admiral headquartered in Tokyo.
Shigetarō Shimada was an admiral in the Imperial Japanese Navy during World War II. He also served as Minister of the Navy. He was convicted of waging aggressive war and sentenced to life imprisonment
Tsuneo Matsudaira, Shigetarō Shimada, Mineichi Koga, and Saburō Hyakutake on the deck of the battleship Musashi, June 1943