What steps did the US take to increase its roles in the postwar world?

After World War II, the US took several significant steps to increase its role in the postwar world. It helped establish key international institutions, such as the United Nations and the Bretton Woods system, to promote global cooperation and economic stability. The US also implemented the Marshall Plan to aid European reconstruction, fostering economic recovery and preventing the spread of communism. Additionally, the establishment of NATO solidified military alliances and ensured collective security among Western nations.