A multinational peace keeping organisation which began as an idea of United States President Woodrow Wilson following the first World War. The Treaty of Versailles created a League with over 40 different countries joining. The United States was not one of them. The League of Nations was to be an international body that would settle future problems through negotiations instead of warfare. The member nations were to work cooperatively through economic and military means to enforce its decisions. However, since the United States did not join, the League never achieved its intentions. While the League did attempt to halt the aggressiveness of Hitler's Germany, their inherent weakness prevented them from stopping World War II.