This course introduces participants to the international law dimensions of peace and conflicts. It explores the international legal standards, both in treaty law and in customary international law, that underpin the prevention, management and resolution of inter-state and intra-state conflicts. The course adopts a diverse range of approaches to examine the rules, procedures, successes and failures of key international organizations, including the United Nations, as well as regional organizations, in responding to peace and conflict situations. Several case studies of actual policy responses, or lack thereof, will be explored in the course. Participants will also learn about the limits that international law places on States and non-state actors in peace and conflict situations, before moving into a critical discussion on the debates surrounding lack of enforcement of those standards in international law. Finally, the course will explore how international law intersects with other areas of inquiry related to peace and conflict studies, in order to promote multi-pronged responses to peace and conflict situations.