Since North Korea's population of more than 20 million is indeed a great human resource, Japan began to recruit soldiers from North Korea from 65438 to 0943. On the other hand, many North Korean workers were sent to Japan, Sakhalin Island and Southeast Asia to do manual labor, and many remained in Japan and Sakhalin Island. In World War II, a few Korean volunteers joined the armies of China, the United States and the Soviet Union and fought against Japan in China and the Pacific Ocean. The provisional government of the Republic of Korea officially declared war on Japan and Germany in February 1945. During the Japanese rule, Koreans who accepted the concept of "Japan and South Korea belong to the same clan" helped the prisoner abuse. According to the statistics of the Japanese Ministry of Health and Welfare in that year, there were 24,2341people on the Korean peninsula who joined the Japanese army, most of whom were sent to the northeast of China to become Japan's second assistant to control the puppet Manchukuo, and were called "two devils" by the people in the northeast, with 1945 people. On August 2 1 day, Soviet troops occupied Pyongyang, and on August 25, American troops landed in Incheon. On September 8, the US Far East Army Command began military and political affairs, and the period of allied trusteeship began.