Stories of war and its aftermath remind us that after the fires of war rage, the embers burn on. The salience of this feature of war makes the current state of normative theorizing about conflict all the more puzzling. Scholars of the just war tradition have significantly contributed to the development of normative principles concerning the ethics of beginning war (jus ad bellum) and the ethics of fighting war (jus in bello) but until very recently have remained comparatively quiet on the principles and practices of how war ends (jus post bellum). When scholars have theorized jus post bellum it has largely been inadequate. By providing an account of jus post bellum, and taking the just war tradition as my place of origin, this project aims to correct this shortcoming in the literature. At the same time, this dissertation seeks to broaden the scope of jus post bellum by connecting it, and the just war tradition more generally, with the emerging contemporary literature of cosmopolitan global justice.