Nina Graeger is a Senior Research Fellow at the Norwegian Institute of International Affairs (NUPI), Oslo, and has a PhD from the University of Oslo (2007). She is co-editor of the Journal International Peacekeeping.

Introduction 1. Security Cooperation as Practice: A View from Below 2. European Security Organisations: Competition, Cooperation, or Indifference? 3. Informal Cooperation Practices in Brussels 4. Informal Cooperation Practices in field operations 5. Military Professionalism and EU-NATO Practices 6. International Policing and EU-NATO Practices 7. Conclusion: European Security: Locked between EU and NATO?