The League of Nations was an intergovernmental organisation founded on 10 January 1920 as a result of the Paris Peace Conference that ended the First World War. It was the first international organisation whose principal mission was to maintain world peace. After a number of notable successes and some early failures in the 1920s, the League ultimately proved incapable of preventing aggression by the Axis powers in the 1930s. Germany withdrew from the League, as did Japan, Italy, Spain, and others. The onset of the Second World War showed that the League had failed its primary purpose, which was to prevent any future world war.