In Southeast Asia , the Manila massacre of February 1945 resulted in the death of 100,000 civilians in the Philippines . It is estimated that at least one out of every 20 Filipinos died at the hands of the Japanese during the occupation . In Singapore during February and March 1942 , the Sook Ching massacre was a systematic extermination of perceived hostile elements among the Chinese population there . Lee Kuan Yew , the ex-Prime Minister of Singapore , said during an interview with National Geographic that there were between 50,000 and 90,000 casualties , while according to Major General Kawamura Saburo , there were 5,000 casualties in total
Manila massacre
Manila massacre
Japanese war crimes