Sofía Sebastián Aparicio is currently a Fritz Thyssen TAPIR Fellow at SIPRI, North America. She has held different positions at various universities and worked as a Political Adviser for the Spanish Embassy to Bosnia and Herzegovina in 2010. She has contributed to a number of books on EU democracy promotion and conflict management, and has published numerous articles on Bosnia and Herzegovina.

• Foreword; Brendan O'Leary Introduction 1. Post-war Statebuilding in Divided Societies: a Conceptual Framework 2. Dayton 3. Beyond Dayton I: Inter-Ethnic Divisions 4. Beyond Dayton II: External Agency 5. Beyond Dayton III: Intra-ethnic Divisions and Collapse 6. Elusive Reform and the New International Engagement 7. Conclusions