The establishment of the League of Nations was primarily led by the desire for lasting peace after the devastation of World War I. The idea emerged from President Woodrow Wilson's Fourteen Points, which proposed a framework for international cooperation to prevent future conflicts. In 1919, the League was founded as part of the Treaty of Versailles, aimed at promoting diplomatic dialogue and resolving disputes through collective security and negotiation rather than war. Despite its noble intentions, the League struggled with enforcement abilities and the absence of major powers, ultimately failing to prevent the rise of aggression leading to World War II.