Cordell Hull was an American politician and diplomat who served as the Secretary of State from 1933 to 1944 under President Franklin D. Roosevelt. He played a significant role in shaping U.S. foreign policy during the Great Depression and World War II, advocating for international cooperation and trade. Hull is best known for his efforts in establishing the United Nations and promoting the idea of collective security. He was awarded the Nobel Peace Prize in 1945 for his contributions to peace and diplomacy, emphasizing the importance of global collaboration to prevent future conflicts.