Juan Masullo, Ph.D (European University Institute), is Departmental Lecturer in the Department of Politics and International Relations (DPIR) and Research Associate at the Changing Character of War Centre (CCW) at the University of Oxford. His substantive academic interests include conflict, civil wars and political violence; civilian agency and civilian protection; collective action and more broadly, contentious politics. He is also interested in field research methods and research design for qualitative and mixed-methods empirical social science. His book project offers a theory to explain why and how some communities living in warzones organize nonviolent collective action to refuse to cooperate with armed organizations. His research combines multiple types of evidence and relies extensively on immersive fieldwork in conflict-affected areas. His work has been published in Terrorism and Political Violence, Journal of Peacebuilding & Development, Mobilization and Global Policy Journal, and in several edited volumes. Before joining the University of Oxford, he was Postdoctoral Fellow at the Bremen International Graduate School of Social Science (BIGSSS) and Research Fellow at Yale’s Program on Order, Conflict and Violence (OCV).