Prime Minister of Japan (July 1944 - April 1945) Governor General of Korea (June 1942 - July 1944)
General Koiso, called the "Tiger of Korea," admitted during the trial to knowing of the widespread atrocities Japanese troops committed against POWs and civilians. Alfred W. Brooks and Joseph C. Howard served as Koiso's American Associate Counsel for the trial. His Japanese Chief Counsel was Shohei Sammonji while his substantial team of Japanese Associate Counsel was comprised of: Kazuya Takagi, Tokihiko Matsuoaka, Kyoichi Kobayashi, Seiichi Saito, Ryoso Makino, Takao Iwamatsu, Tsunehisa Mimachi and Mr. Oba. The Tribunal convicted Koiso of counts 1, 27, 29, 31, 32, and 55 ultimately sentencing him life imprisonment. In addition to determining that Koiso knew of the committed atrocities, but did nothing, the Tribunal convicted him of plotting against China. Importantly, by convicting him based on his knowledge of the atrocities, the courts ruling expanded the meaning of "human responsibility." [See Totani, p. 213] Koiso died while in Sugamo Prison on November 3, 1950. Controversially, he was later enshrined, along with 13 other convicted defendants, at the Yasukuni Shrine.