Introduction to the establishment of prisoner of war camps: On December 8, 1941, the Japanese army attacked Pearl Harbor, and the Pacific War broke out. In just five months, the Japanese army swept across Southeast Asia and captured nearly 200,000 Allied troops. The Japanese army established a total of 115 internment camps in the Philippines, Malaysia, Singapore, Myanmar, Thailand, Wake Island, Java, North Korea, Shenyang, Shanghai, Weifang, Taiwan, Hong Kong, Japan and other countries and regions under its occupation. Concentration camps for military prisoners of war and allied expatriates.