Harry S. Truman played a significant role in the formation of which international organization?

Harry S. Truman played a significant role in the formation of the United Nations. Following World War II, there was a strong desire among nations for a cooperative and peaceful international framework to prevent future conflicts. Truman, as the President of the United States, was instrumental in promoting the establishment of the United Nations in 1945. The UN was created to foster international cooperation, peace, and security, making it a critical response to the failures of the League of Nations and a means to address global issues collectively.

While NATO was established shortly after WWII to provide collective security against the Soviet Union, Truman’s more direct involvement came with the founding of the United Nations, where he played a key role in its structure and purpose.