Between the end of the First World War and the onset of the Great Depression, the world made several efforts to build a structure that would prevent war in the future including: The Versailles Treaty and the League of Nations, The Washington Conference, the Dawes Plan, the Locarno Agreement, and the Kellogg-Briand Peace Pact. What motivations or ideas can you see behind the ways leaders in the 1920s approached peacemaking. Why did their efforts prove unable to handle the challenges to the international system represented by Germany, Italy, and Japan in the 1930s?