The League of Nations

Although the League of Nations was short-lived and clearly failed in its primary mission, it did essentially spawn the United Nations at the end of World War II, and many of the UN’s structures and organizations came straight from its predecessor, with the concepts of an International Court and a General Assembly coming straight from the League. More importantly, the failures of the League ensured that the UN was given stronger authority and enforcement mechanisms, most notably through the latter’s Security Council.