After United Nations forces pushed back North Korea forces and advanced forward the Chinese border, what did China most likely fear

i feel like it's::-that the United States forces might invade china next

Explanation:

The brilliant landing cut the North Korean forces in two, and the U.S.-led U.N. force pushed inland to recapture Seoul, the South Korean capital that had fallen to the communists in June.On June 30, Truman agreed to send U.S. ground forces to Korea, and on July 7 the Security Council recommended that all U.N.

really hope that works

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.