The primary purpose of the League of Nations was to promote peace and prevent conflicts following World War I. Established in 1920, it aimed to provide a forum for resolving international disputes through diplomacy rather than conflict. The League sought to address global issues such as disarmament, collective security, and humanitarian efforts. However, its effectiveness was limited by the absence of major powers like the United States and its inability to enforce resolutions. Despite its challenges, the League served as a precursor to the United Nations, shaping future international relations.