Answer uwu <3:
A dispute between President Harry S. Truman and General Douglas MacArthur in 1951, during the Korean War. MacArthur, who commanded the troops of the United Nations, wanted to use American air power to attack the People's Republic of China. Truman refused, fearing that an American attack on China would bring the Soviet Union into the war. When MacArthur criticized Truman's decision publicly, Truman declared MacArthur insubordinate and removed him as commanding general. MacArthur returned to the United States, received a hero's welcome, and told Congress. “Old soldiers never die, they only fade away.”
With war, every country is afraid. They're afraid of possibly being ambushed, becoming in dept, and many other reasons. So by remaining neutral they can sit back and not have to worry about being attacked by any country that's fighting. But that's not always the case now and days. Hope I answered your question correctly.