After world war 1 the United States wanted to isolate themselves from things like that because of how bad the war was. They went as far as to not join the league of nations that their President made himself with other presidents. After the Korean War, they decided to not isolate themselves and meddle as much as possible to prevent the spread of communism because it would strengthen the Soviet Union who was the main enemy.
D) Fourteen Points Plan was proposed by Woodrow Wilson at the end of World War 1 to maintain Peace. This plan included the League of Nations
Byzantine empire i'm pretty sure
Answer:
Chinese trading po