Role of Soviet Union
The Soviet Union had helped aid the North Korean-Chinese forces, because they were for the communist side, which was the Soviet. They had helped them with medical services and some material. Also, some Soviet pilots and air crafts were used to aid North Korea/China against the UN forces.
The role of the Soviet in the Korean War was to help out the North Korean and Chinese side, the communists on their north side, the Soviet had played a significant, covert role int he Korean War conflict by aiding North Korea with supplies and medicals. The Soviet Union had added more support to North Korea, as it was already being supported by China, and the communists were working together the help spread communism.