The abstract for the International Studies Association panel that gave rise to this special section of Ethics & International Affairs referred to the “triumph” of just war theory. However, I think we ought rather to speak of just war discourse as occupying a particular niche. This is especially so with respect to discussions about policy: when and where governments should make use of military force, what type, and so on. In that context, appeals to the criteria of jus ad bellum and jus in bello complement (or sometimes compete with) thinking that draws on international law, various strategic doctrines (for example, counterinsurgency warfare, or COIN), notions of reciprocity between states, and a host of other considerations. The notion of “triumph” claims too much. At the same time, for advocates of the just war framework, the kind of recognition indicated by presidential and other official mentions of the idea is worthy of note. Some of these are due to constituency politics—that is, to the idea that “institutional” advocates of just war (say, the U.S. Conference of Catholic Bishops) may influence blocs of voters. Other invocations are better interpreted as a recognition that the vocabulary of just war can serve (along with other ways of speaking) in the attempt to craft wise policy.