The League of Nations was an international organization founded after World War I with the goal of maintaining peace and cooperation among nations. It was established in 1920 and was headquartered in Geneva, Switzerland. The League of Nations worked to resolve international conflicts, promote disarmament, and improve social and economic conditions worldwide. However, due to various challenges and lack of support from some major nations, the League of Nations was unable to prevent World War II and was replaced by the United Nations in 1945. Is there anything else you would like to know?