How did World War II change Americans expectations of their nations role in the world?
Previously, Americans had wanted their country to stay out of international affairs. The U.S. practiced a policy of isolationism which is why they entered the First World War so late. After the Second World War, however, everyone realized that the U.S. was a super power and the time of Britain and other European powers (except for Russia) was really over. As a super power, Americans expected their government to basically police the rest of the world, helping to stop the spread of communism especially. The Second World War made Americans change their policy of keeping out of the affairs of other nations.
