‘John Karlsrud - with his insider knowledge - asks and answers the right questions: Why does the UN act the ways it does, and how do those ways of operating become established policy norms? This is an accessible and valuable book’ - Roger Mac Ginty, Professor of Peace and Conflict Studies, University of Manchester, UK‘Out of new conceptual space, Karlsrud adapts the ‘linked ecologies’ framework to provide fresh analytical thinking on norm arbitrage as a policy practice with real impact.’ - Diane Stone, University of Warwick, UK and Centenary Professor, University of Canberra, Australia‘John Karlsrud provides a valuable new perspective for understanding and explaining the dynamics of UN peacekeeping missions. Norm Change in International Relations should be read by anyone wishing to understand the evolution of UN peacekeeping practices and how norm change is enacted within international organizations.’ - André Broome, Director of the Centre for the Study of Globalisation and Regionalisation, University of Warwick, UK‘Where do new peacekeeping norms come from? John Karlsrud’s incisive book shows how senior mission leaders in the field and broader epistemic communities that advocate on peacekeeping issues bring their ideas to the competitive arena of the United Nations, and why certain ideas, including the "responsibility to protect" and the need for "integrated missions," won out in the battle for normative supremacy.’- Paul D. Williams, Elliott School of International Affairs, the George Washington University, USA