Peter Wallensteen is Senior Professor of Peace and Conflict Research at Uppsala University, Uppsala, Sweden, since 2012. He held the Dag Hammarskjöld Chair of Peace and Conflict Research, Uppsala University (1985–2012). He is also the Richard G. Starmann, Senior Research Professor of Peace Studies at the Kroc Institute for International Peace Studies, University of Notre Dame, Indiana, USA (since 2006). He directs the Uppsala Conflict Data Program (UCDP) and the Special Program on International Targeted Sanctions (SPITS). His Understanding Conflict Resolution: War, Peace and the Global System (Sage, earlier edition, available also in an Arabic translation) is used in teaching around the world. His book Peace Research: Theory and Practice (Routledge 2011) demonstrates his range of research interests and has recently been translated into Chinese. Recently he also edited together with Ambassador Anders Bjurner Regional Organizations and Peacemaking: Challengers to the UN? (Routledge 2015). In 2010, he and Isak Svensson published The Go-Between (United States Institute of Peace Press), a study of mediation efforts by the renowned Swedish diplomat Jan Eliasson. Wallensteen has published widely on conflict trends, conflict resolution, mediation, prevention, sanctions and the United Nations.