This book is about the EU's role in conflict resolution and reconciliation in Europe. Ever since it was implemented as a political project of post-World War II Western Europe, European integration has been credited with performing conflict resolution functions. It allegedly transformed the long-standing adversarial relationship between France and Germany into a strategic partnership. Conflict in Western Europe became obsolete. The end of the Cold War further reinforced the EU's role as a regional peace project. While these evolutionary dynamics are uncontested, the deeper meaning of the process - its transformative power - is still to be elucidated. How does European integration restore peace when its equilibrium is broken and conflict or the legacies of enmity persist? This book sets out to explain exactly that. It applies the analytical lens of Europeanisation to explore the conflict-resolution role of European integration by testing its somewhat vague, albeit well-established, macro-political rationale as a peace project in the practical settings of conflicts. The central argument of the book is that the evolving policy mix, resources, framing influences and political opportunities, through which European integration affects conflicts and processes of conflict resolution, demonstrate a historical continuity. As a result, the EU has become an indispensable factor of conflict resolution. The book will be of value to academics and non-expert observers with an interest in European integration and peace studies.