This course examines core ideas arounds the practice of war and the making of peace. By doing so, we will focus on actors involved both in conflict and peace processes. We will also discuss why, when, and where they fight are directly related to our social characteristics: environment, values, beliefs, political preferences, and other features. The course also investigates how wars are fought, and peace is built. It draws on theoretical approaches of international relations as well as historical and contemporary case studies. The goal is to detangle how the linkage between war, peace, and society plays out globally. Most importantly, the course calls to discuss the necessary conditions for sustained peace that enables citizens to live and flourish. Overall, students will be exposed to and required to engage in various social science methodologies, including history, political science, economics, law, sociology, and anthropology.