Answer:
US troops kept marching farther into North Korea, getting closer to the Chinese border.
Step-by-step explanation:
China's Communist leader Mao Zedong became involved in the Korean war in 1950 after meeting Kim. Mao Zedong was concern about American forces that would overthrow Kim Il-Sung and occupation the whole Korean peninsula. He decided to act and agreed to support the North Korean invasion. Mao believed that by dispatching Chinese Red Army troops in Korea would be beneficial for the country.