Following the territorial defeat of ISIS, a victor’s peace has emerged in Iraq which challenges certain liberal preconceptions about how to build sustainable peace. This book explores the nature of the prevailing peace in Iraq and the peacebuilding processes behind it, focusing on political power-sharing, security provision, transitional justice, and reconciliation. Based on extensive interviews with Iraqi and international peacebuilding practitioners, this is the first comprehensive analysis of contemporary Iraqi peacebuilding, grounded in the history of the post-2003 conflict cycle. By examining the role of the state but also other political and social actors such as tribes and militia, it problematises state-centric notions of political authority, order, and power. This book is essential to understanding a complex peace which has proved sustainable yet remains fragile.