The role of the League of Nations in the aftermath of World War I was to promote peace and prevent future conflicts. Established in 1920, it aimed to provide a platform for international dialogue and cooperation. The League sought to address issues such as territorial disputes, disarmament, and humanitarian concerns. However, its inability to enforce decisions and the absence of key nations, such as the United States, hindered its effectiveness. Despite its shortcomings, the League of Nations represented an early attempt at collective security and international governance, influencing future organizations like the United Nations.