Seishirō Itagaki
After the Second World War, at the International Military Tribunal for the Far East, fourteen Japanese were charged by delegates of the conquering Soviet Union, with having "initiated a war of aggression ... against the Mongolian People's Republic in the area of the Khalkhin-Gol River" and also with having waged a war "in violation of international law" against the USSR. Kenji Doihara, Hiranuma Kiichirō, and Seishirō Itagaki were convicted on these charges.