It may be pointless to try to establish which World War Two Axis aggressor, Germany or Japan, was the more brutal to the peoples it victimised.
The Germans killed six million Jews and 20 million Russians [i.e. Soviet citizens]; the Japanese slaughtered as many as 30 million Filipinos, Malays, Vietnamese, Cambodians, Indonesians and Burmese, at least 23 million of them ethnic Chinese. Both nations looted the countries they conquered on a monumental scale, though Japan plundered more, over a longer period, than the Nazis. Both conquerors enslaved millions and exploited them as forced labourers—and, in the case of the Japanese, as [forced] prostitutes for front-line troops. If you were a Nazi prisoner of war from Britain, America, Australia, New Zealand or Canada (but not Russia) you faced a 4% chance of not surviving the war; [by comparison] the death rate for Allied POWs held by the Japanese was nearly 30%.[23]
According to the findings of the Tokyo Tribunal, the death rate among POWs from Asian countries, held by Japan was 27.1%.[24] The death rate of Chinese POWs was much higher because—under a directive ratified on August 5, 1937 by Emperor Hirohito—the constraints of international law on treatment of those prisoners was removed.[25] Only 56 Chinese POWs were released after the surrender of Japan.[26] After March 20, 1943, the Japanese Navy was under orders to execute all prisoners taken at sea.[27]
[edit] Mass killings
R. J. Rummel, a professor of political science at the University of Hawaii, states that between 1937 and 1945, the Japanese military murdered from nearly 3,000,000 to over 10,000,000 people, most likely 6,000,000 Chinese, Indonesians, Koreans, Filipinos, and Indochinese, among others, including Western prisoners of war. "This democide was due to a morally bankrupt political and military strategy, military expediency and custom, and national culture."[28] According to Rummel, in China alone, during 1937-45, approximately 3.9 million Chinese were killed, mostly civilians, as a direct result of the Japanese operations and 10.2 millions in the course of the war.[29] The most infamous incident during this period was the Nanking Massacre of 1937-38, when, according to the findings of the International Military Tribunal for the Far East, the Japanese Army massacred as many as 300,000 civilians and prisoners of war, although the accepted figure is somewhere in the hundreds of thousands.[30] A similar crime was the Changjiao massacre. In Southeast Asia, the Manila massacre, resulted in the deaths of 100,000 civilians in the Philippines and in the Sook Ching massacre, between 25,000 and 50,000 ethnic Chinese in Singapore were taken to beaches and massacred. There were numerous other massacres of civilians e.g. the Kalagong massacre.
Historian Mitsuyoshi Himeta reports that a "Three Alls Policy" (Sankō Sakusen) was implemented in China from 1942 to 1945 and was in itself responsible for the deaths of "more than 2.7 million" Chinese civilians. This scorched earth strategy, sanctioned by Hirohito himself, directed Japanese forces to "Kill All, Burn All, and Loot All."