This module discusses some recent debates within international political theory, in particular those on the theme of global justice. It addresses questions such as: What, if anything, does justice demand on the global scale? Is the distribution of resources across the world unfair or unjust? If so, what should we do about it? Do we have any duties of justice to people in other countries? If so why, and how should these be balanced with duties to our fellow citizens? How should we address international conflicts and global crisis? It first discusses major theories of global justice, such as cosmopolitism and nationalism. It then discusses several pressing issues, such as climate change, immigration and just war. At the end of the course, students should have an overview of some of the most important debates about global justice and be able to make use of some of the most advanced philosophical theories in assessing the issues involved.