The League of Nations was an international organization founded after World War I in 1920. Its main goal was to promote peace and cooperation among countries to prevent future conflicts. The League aimed to resolve disputes through negotiation and diplomacy rather than war. Despite its noble intentions, the League struggled to maintain authority and effectiveness. Key nations, such as the United States, never joined, and it failed to prevent major conflicts, including World War II. The League was eventually dissolved in 1946, and its functions were taken over by the United Nations.