He played a major role during the International Military Tribunal for the Far East in working with the major defendants, such as Hideki Tōjō, to coordinate their testimonies so that Emperor Hirohito would be spared from indictment. According to his interpreter Suichi Mizota, in March 1946 Bonner Fellers asked him to make Tōjō bear all responsibility for the Greater East Asia War.Herbert Bix, Hirohito and the making of modern Japan, Perennial, 2001, p.584. After the war, Yonai devoted the rest of his life to help to rebuild Japan.
