The establishment of the League of Nations was significant after World War I as it represented a pioneering attempt at collective security and international cooperation. Founded in 1920, the League aimed to prevent future global conflicts through diplomacy and dialogue, promoting disarmament and resolving disputes peacefully. It marked a shift from unilateral military actions to a more organized approach to maintaining peace. Although the League ultimately struggled to enforce its resolutions and faced significant challenges, including the absence of major powers like the United States, it laid the groundwork for future international organizations, such as the United Nations, in the quest for lasting peace.