The ‘Great War’ of 1914-18 has dominated academic and popular debate over the past decade. Yet post-war attempts at peace-making may yield more important insights and lessons for contemporary debates about global order and attempts to forge a ‘rules-based international system’. The Paris Peace Conference of 1919 has attracted intense interest from both historians of international relations and international lawyers. But the research that has resulted is characterised by a striking lack of dialogue between the two disciplines. Co-organised by our founding director Professor Christian J. Tams and Professor Peter Jackson, the core objective of this Conference is to make a significant and original contribution to existing scholarship on the Paris Peace Conference by marrying research questions and methodological approaches from the disciplines of international law and international history.