Japanese war crimes
The U.S. officially classified all 3,649 military and civilian casualties and destruction of military property at Pearl Harbor as non-combatants as there was no state of war between the U.S. and Japan when the attack occurred. Joseph B. Keenan, the chief prosecutor in the Tokyo Trials, says that the attack on Pearl Harbor not only happened without a declaration of war but was also a treacherous and deceitful act. In fact, Japan and the U.S. were still negotiating for a possible peace agreement which kept U.S. officials very distracted when Japanese planes bombed Pearl Harbor. Keenan explained the definition of a war of aggression and the criminality of the attack on Pearl Harbor:
George Marshall
After World War II ended, the Congressional Joint Committee on the Investigation of the Pearl Harbor Attack received testimony on the intelligence failure. It amassed 25,000 pages of documents, 40 volumes, and included nine reports and investigations, eight of which had been previously completed. These reports included criticism of Marshall for delay in sending General Walter Short, the Army commander in Hawaii, important information obtained from intercepted Japanese diplomatic messages. The report also criticized Marshall's lack of knowledge of the readiness of the Hawaiian Command during November and December 1941. Ten days after the attack, Lt. General Short and Admiral Husband E. Kimmel, commander of the Navy at Pearl Harbor, were both relieved of their duties. The final report of the Joint Committee did not single out or fault Marshall. While the report was critical of the overall situation, the committee noted that subordinates had failed to pass on important information to their superiors, including Marshall.