Darrel Moellendorf is Professor of Philosophy and Director of the Institute for Ethics and Public Affairs at San Diego State University.

• 1 Introduction: A Tale of Two Tendencies in International Law, 2 Rawlsian Constructivism and Cosmopolitan Justice, 3 The Borders of Justice, 4 Global Egalitarianism and Imperialism, 5 Cosmopolitan Sovereignty and Justified Intervention, 6 A Cosmopolitan Account of National Self-determination, 7 Political Realism, Pacifism, and the Justice of War, 8 Concluding Remarks: Toward an Egalitarian World Order