This supreme commander was later elected as General Douglas MacArthur for the Allied Powers on January 19, 1946. The supreme commander is the one responsible for issuing an order to appoint the 11 justices and approving of its charter and thus this shows his important role in the trial. So finally the great Tokyo trial was opened up on May 3, 1946 to bring about justice for the atrocities created by the Japanese military. There were a total of 11 justices who represented 11 different nations who formed the allies. They were the following: United States of America, Republic of China, The United Kingdom of Great Britain, The Union of Soviet Socialist Republic, The Commonwealth of Australia (presiding judge), Canada, The Republic of France, The Kingdom of Netherlands, New Zealand, India, and The Commonwealth of the Philippines. In addition these 11 different nations formed the International prosecution section. Out of the 11 members in this section, 10 were associates and only one of them was the main prosecutor who was Joseph B. Keenan from the U.S. These allied powers were against 28 defendants. Most of these criminals were very powerful men. About 14 of them were ranked general in the Imperial Japanese Army. Furthermore, 7 of these men served as war ministers and 9 of them as war time commands.2 (Pg 2-4).
These criminals were charged with 55 counts (offenses) which fall under 3 main categories: Crimes against Peace, Crimes against Humanity and finally conventional war crimes. Crimes against Peace included the planning, preparation, waging of a declared or undeclared war of aggression or a war in violation of international laws, treaties, agreements, assurances, or participation in a common plan or some sort of conspiracy. In addition, crimes against humanity consisted of the following: murder, extermination, enslavement, deportation, inhumane acts committed on civilians before or during war and etc.