Answer:
During the Korean War, President Truman and General MacArthur disagreed about the threat represented by China.
Step-by-step explanation:
The reality is that Douglas MacArthur, the commander of American forces during the Korean War, saw China as a threat (which became effective after October 19, 1950, when Chinese forces attacked UN forces before they crossed the Amnok river). The Chinese government believed that if the UN expires in Korea, then it would attack its territory. For this reason, it could be said that said advance by the Chinese forces constituted a pre-emptive attack, which sought to push MacArthur's troops back to the south.
However, MacArthur believed that the Chinese threat must indeed be ended. Instead, President Truman believed that a war with China could prove to be very dangerous, and also mobilize a series of alliances that could lead to a large-scale war. So in view of these differences, the relationships between the two characters began to get tense.