Acknowledgments
The author would like to thank Tim Eaton, Lina Khatib and Jane Kinninmont as well as the external reviewers for their time, comments and suggestions on the various drafts of this paper. Neil Quilliam as the primary editor provided many thoughtful recommendations. Their collective contributions have undoubtedly strengthened the quality of this paper. Thank you to the Chatham House publications team for their editorial work and to Reni Zhelyazkova who shepherded this paper through the publication process.