This book studies the role of the EU in peace and security as a regional actor with global aspirations, in the context of challenged and changing multilateralism.

Introduction 1. Conceptualizing Multilateral Security GovernanceMichela Ceccorulli and Sonia Lucarelli 2. The Post-Westphalian State, National Security Cultures, and Global Security Governance James Sperling 3. The Human Security Dimension of Multilateral Security Governance: A Social Constructionist Approach Luk Van Langenhove and Tiziana Scaramagli 4. Multilateralism at the Heart of the European Union Security Strategy Siobhán Gabriella Gibney and Sven Biscop 5. The EU as a Multilateral Security Actor after Lisbon: Constitutional and Institutional Aspects Jan Wouters, Stephanie Bijlmakers and Katrien Meuwissen 6. The EU's Participation in Multilateral Organizations Emil J. Kirchner 7. The EU's Democracy promotion in the Middle East and North Africa: Compromising With Security Concerns? Ruth Hanau Santini 8. The EU in Multilateral Security Governance: the Case of the 2009 Russian-Ukrainian Gas Dispute Sijbren de Jong, Jan Wouters and Steven Sterkx 9. The EU and Multilateral Governance of Migration in North and West Africa Michela Ceccorulli and Emmanuel Fanta

Sonia Lucarelli is Associate Professor of International Relations at the University of Bologna, Italy, and Director of Research at the Forum on the Problems of Peace and War in Florence, Italy.

Luk Van Langenhove is Director of the United Nations University Institute on Comparative Regional Integration Studies (UNU-CRIS) in Bruges, Belgium.

Jan Wouters is Jean Monnet Chair ad personam EU and Global Governance, Professor of International Law and International Organizations and Director of the Leuven Centre for Global Governance Studies/Institute for International Law at the University of Leuven, Belgium.