Felix Berenskoetter, SOAS, University of London, UKHeather Devere, University of Otago in Dunedin, New ZealandLucile Eznack, University of Geneva, SwitzerlandLily Gardner Feldman, Johns Hopkins University, USCaroline Patsias, Université du Quebec à Montréal, CanadaSylvie Patsias, Institute of Political Studies, FranceEvgeny Roshchin, University of Jyväskylä, FinlandGraham M. Smith, University of Leeds, UKAntoine Vion, Aix-Marseille University, France

'Oelsner and Koschut pose important questions about the nature of the international system and make a convincing case for why IR scholars should include international friendship in their analysis. They offer a solid theoretical foundation in the conceptual chapters, and their case is further strengthened by the empirical chapters that demonstrate the added value of studying international friendship. Their argument deserves serious consideration, which, ultimately, is also the friendly thing to give.' - Yuri van Hoef, University of Leeds, UK

• PART I: INTRODUCTION 1. A Framework for the Study of International Friendship; Andrea Oelsner and Simon Koschut PART II: CONCEPTIONS 2. Friendship, State and Nation; Graham M. Smith 3. Friendship, Security and Power; Felix Berenskoetter 4. The Sources of Affect in Interstate Friendship; Lucile Eznack and Simon Koschut 5. Friendship and International Order: An Ambiguous Liaison; Evgeny Roshchin PART III: PRACTICES 6. Franco-German Friendship: A Dynamic Perspective; Antoine Vion 7. German-Polish Ties: Special Relationship, Friendship or Reconciliation?; Lily Gardner Feldman 8. The Construction of International Friendship in South America; Andrea Oelsner 9. Social Forums and Friendship: A New Way of Contemplating the Notion of Friendship in International Relations; Caroline Patsias and Sylvie Patsias 10. Friendship in International Treaties; Heather Devere PART IV: CONCLUSION 11. Conclusion; Simon Koschut and Andrea Oelsner