The post-Cold War era is characterised by shifting patterns of war and peace. The new demands and challenges facing external actors, such as international peacekeeping forces and mediators, are therefore manifold. In War and Peace in Transition the authors address some of the critical and transformative issues in war and peacemaking, such as the roles of private military and security companies and the use of force in peace support operations. The authors discuss how states, organisations and individuals contribute to conflict resolution. Another focus is the challenge of coordinating various peacemaking efforts.The contributors - scholars in the field of Peace and Conflict Research - take a systematic approach to analysing some of these transient aspects of war and peace with empirical cases ranging from Iraq, Israel-Palestine, Sri Lanka to the Armenian genocide.The Authors:Karin Aggestam, Associate Professor in Political Science and Director of Peace and Conflict Research, Lund University.Annika Björkdahl, Associate Professor at the Department of Political Science, Lund University.Joakim Berndtsson, Postdoctoral Researcher in Peace and Development Research at the School of Global Studies, University of Gothenburg.Birger Heldt, Director of Research at the Folke Bernadotte Academy, and Associate Professor of Peace and Conflict Research.Kersti Larsdotter, Research Assistant at the Department of War Studies at the Swedish National Defence College, and Ph.D. student at the School of Global Studies, University of Gothenburg.Kristine Höglund, Associate Professor at the Department of Peace and Conflict Research, Uppsala University.Anna Leander, Professor at Copenhagen Business School.Michael Schulz, Associate Professor in Peace and Development Research, University of Gothenburg.Maria Småberg, Ph.D. and Lecturer at the Department of History and the Department of Peace and Conflict Research, Lund University.Isak Svensson, Assistant Professor at the Department of Peace and Conflict Research, Uppsala University.