The conclusion returns to the symbolic significance of Constantinople as an unrealized international city and reassesses its place within the history of global governance. It argues that the League’s geography was not incidental but central to its political meaning. By revisiting the clash between liberal and imperial internationalisms, the chapter reflects on the long-term consequences of the League’s institutional choices. The Constantinople proposal is presented as a counterfactual that exposes enduring tensions between inclusion and power in international order.