This book stems from my long-standing research interest in how extensive international involvement in a state for the purpose of post-conflict reconstruction relates to international law. Over the years of working on this topic and related issues, I have been fortunate enough to benefit from the guidance, assistance, and good company of many fantastic colleagues and friends. I am extremely grateful for all of the support I have received. In particular, I thank Colin Warbrick for pointing me in the direction of this topic when I was an LLM student at Durham University, and Nigel White for supervising my first attempts to make sense of the topic when I was a PhD student at Sheffield University. Themanuscript was largely written, in spits and spurts, over the period 2011–2013. The first major block of writing was undertaken during a period of research leave in 2011–2012 from what was then my position as a lecturer in law at Durham Law School. Thanks to Durham Law School for granting me the leave and thanks to the Department of Public and International Law at the University of Oslo for providing me with an excellent space to work. The second block of writing was undertaken on my return to Oslo in 2013 as a researcher on the European Research Council (ERC) funded research project MultiRights. Thanks to the Norwegian Human Rights Centre (NCHR) for hosting me and thanks to Andreas F?llesdal and Geir Ulfstein for allowingme the time to finish the manuscript.