Conference of Ambassadors
The Conference of Ambassadors of the Principal Allied and Associated Powers was an inter-allied organization of the Entente in the period following the end of World War I. Formed in Paris in January 1920 it became a successor of the Supreme War Council and was later on de facto incorporated into the League of Nations as one of its governing bodies. It became less active after the Locarno Treaties of 1925 and formally ceased to exist in 1931 or 1935. The Conference consisted of ambassadors of the United Kingdom, Italy, and Japan accredited in Paris and French minister of foreign affairs. The ambassador of the United States attended as an observer because the United States was not an official party to the Treaty of Versailles. French diplomat René Massigli was its secretary-general for its entire existence. It was chaired by the French foreign ministers, among them Georges Clemenceau, Raymond Poincaré and Aristide Briand. It was formed to enforce peace treaties and to mediate various territorial disputes among European states. Some of the disputed regions handled by the Conference included Cieszyn Silesia (between Poland and Czechoslovakia), the Vilnius Region (between Poland and Lithuania), the Klaipėda Region (between Germany and Lithuania) and