Throughout the period of inter-war years (1918-1939) idealism as well termed as liberal internationalism became the dominant ideology for both political figures and International Relations theorists. Ultimately the outbreak of World War two proved that the idealism of this era was unable of preserving the peace and that the basic beliefs of these early idealists were misplaced. This solution provides a comprehensive description of how the inter-war idealists viewed the international structure of the 1920s and 1930s as they wished it to be as opposed to how it truly was.