Sovereignty has been variously understood as the given principle of international relations, an institution, a social construct, a performative discourse subject to historical transformation, or a particular practice of power. The “articulations” of sovereignty refer to sovereignty as a practice that is worked on and in turn works with and against other practices. Alongside territory and supreme authority, sovereignty is characterized by the capacity to make and enforce laws. Sovereignty has also been defined in opposition to rights, as the spatiotemporal limits it instantiates are also the limits of rights. Another conceptualization of sovereignty has been revived in international relations, partly in response to the question of exclusions and limits that sovereign practices enacted. In addition, sovereignty is not inextricably tied up with the state but is articulated with heterogeneous and contradictory discourses and practices that create meaning about the international, and has consequences for the kind of community, politics, and agency that are possible. There are three effects of the logic of sovereignty in the international system: the ordering of the domestic and the international, the spatio-temporal limits to politics, and the exclusions from agency. In addition, there are three renditions of the international as a “thick” social space: those of globalization theories, of biopolitics, and of empire.