Korean reunification selected the 38th parallel as a dividing line. Japanese troops to the North of this line were to surrender to the Soviet Union and troops to the South of this line would surrender to the United States. This was not originally intended to result in a long-lasting partition, but Cold War politics resulted in the establishment of two separate governments in the two zones in 1948 and rising tensions prevented cooperation. The desire of many Koreans for a peaceful unification was dashed when the Korean War broke out in 1950. In June 1950, troops from North Korea invaded South Korea.
Soviet Union in the Korean War the war to rebuild the country. Soviet soldiers were instrumental in the creation and early development of the North Korean People's Army and Korean People's Air Force, as well as for stabilizing the early years of the Northern regime. The Shineuiju Air Force Academy was founded under Soviet leadership on 25 October 1945 in order to train new pilots. Because at the time the war broke out in 1950, the Communist Soviet Union, China and their allies were already locked into a "Cold War" with capitalist countries, both sides felt that the Korean Conflict carried the potential to further destabilize