The Paris peace settlements following the First World War remain amongst the most controversial treaties in history. Bringing together leading international historians, this volume assesses the extent to which a new international order, combining old and new political forms, emerged from the peace negotiations and settlements after 1918. Taking account of new historiographical perspectives and methodological approaches to the study of peacemaking after the First World War, it views the peace negotiations and settlements after 1918 as a site of remarkable innovations in the practice of international politics. The contributors address how a wide range of actors set out new ways of thinking about international order, established innovative institutions, and revolutionised the conduct of international relations. They illustrate the ways in which these innovations were merged with existing practices, institutions, and concepts to shape the international order that emerged out of the Paris Peace Conference of 1919