The major objective of the League of Nations, established after World War I, was to promote international cooperation and peace, preventing future conflicts through diplomacy and collective security. Founded on the principle of collective action, the League aimed to resolve disputes between nations without resorting to warfare. It sought to provide a forum for dialogue, support disarmament, and address various global issues, including health and social welfare. Although it was a pioneering effort in international governance, the League ultimately struggled with enforcement and credibility, particularly as key nations like the United States chose not to join.