While these other reforms were taking place , various military tribunals , most notably the International Military Tribunal for the Far East in Ichigaya , were trying Japan 's war criminals and sentencing many to death and imprisonment . However , many suspects such as Masanobu Tsuji , Nobusuke Kishi , Yoshio Kodama and Ryōichi Sasakawa were never judged , while the Emperor Hirohito , all members of the imperial family implicated in the war such as Prince Chichibu , Prince Yasuhiko Asaka , Prince Fushimi Hiroyasu , Prince Naruhiko Higashikuni and Prince Tsuneyoshi Takeda , and all members of Unit 731 — including its director Dr. Shirō Ishii — were granted immunity from criminal prosecution by General MacArthur
Unit 731
Unit 731
Occupation of Japan