North Korea in the Korean War diseases and other illnesses were a constant threat. By the end of the summer, President Truman and General Douglas MacArthur (1880-1964), the commander in charge of the Asian theater, had decided on a new set of war aims. Now, for the Allies, the Korean War was an offensive one: It was a war to "liberate" the North from the communists. Initially, this new strategy was a success. An amphibious assault at Inchon pushed the North Koreans out of Seoul and back to their side of the 38th parallel. But as American troops crossed the boundary and headed north toward the
Soviet Union in the Korean War the United States and its allies elsewhere, which could have led to a nuclear war. By officially denying its participation, the Soviets prevented the Korean War from escalating. Participation on the North Korean side was also contrary to the UN Security Council Resolution 84 by which the Soviet Union was technically bound. Along with several "Eastern Block" countries (notably Czechoslovakia), the Soviet Union sent over 20 doctors to Korea to aid Communist forces there, similar to Indian, Italian, Norwegian, Danish and Swedish medical detachments in Southern Korea who did not have military force engaged, but merely offered humanitarian support instead.