PrincessOlive22id PrincessOlive22id History Answered 100 POINTSS!! How did the end of World War II impact the United States and its involvement in Europe? The United States occupied areas of Eastern Europe to block the Soviet Union from the region. The United States developed the Marshall Plan to provide economic aid to Western Europe. The United States withdrew all its troops from Europe immediately after the war. The United States used military force to clear the Soviet Union from the western part of Europe.