on 27 June he went to the United Nations and persuaded them to oppose the North Korean invasion. The UN forces, led by the American General MacArthur, landed in Pusan and Inchon in September 1950 and by October 1950 had pushed back the North Koreans almost to the Chinese border.
At this point, the Chinese got involved, and drove back the Americans. A front line was eventually established around the 38th parallel (where it had all began), although the war went on for another three years. Truman refused MacArthur’s advice to use the atomic bomb. Russian troops went to help the communists, but they went as ‘advisers’ and dressed like North Koreans. In this way, Russia and America avoided direct war.