Preventing Enemy Coalitions Preventing Enemy Timothy W
Preventing Enemy Coalitions Preventing Enemy Timothy W. Crawford Coalitions How Wedge Strategies Shape Power Politics How do states dis- suade adversaries from organizing against them? When do they succeed in splitting opponents that have formed or are likely to form an alliance? How do such “wedge strategies” inºuence larger patterns of international politics? Scholars have focused much attention on how alliances form and whether they are driven by balancing, bandwagoning, or other dynamics.1 They have paid less attention to the role of wedge strategies in disrupting or preventing the formation of alliances and to understanding how and when those strategies succeed.2 Timothy W. Crawford is Associate Professor of Political Science at Boston College. For helpful comments and discussion on earlier drafts, the author would like to thank Jonathan Caverley, Michael Glosny, Stacie Goddard, Yasuhiro Izumikawa, Ronald Krebs, Orly Mishan, T.V. Paul, Evan Resnick, Norrin Ripsman, Robert Ross, Jack Snyder, Karen Yarhi-Milo, and the anony- mous reviewers. He would also like to thank participants in conference panels at meetings of the American Political Science Association and International Studies Association, as well as seminar participants at Harvard University’s John M. Olin Institute for Strategic Studies and the Massa- chusetts Institute of Technology’s Security Studies Program, for their comments and suggestions. The following Boston College undergraduate and graduate research assistants also deserve thanks: Raakhi Agrawal, Danielle Cardona, Jonathan Culp, Alexandre Provencher-Gravel, and Amanda Rothschild. 1. Kenneth N. Waltz, Theory of International Politics (New York: Random House, 1979); Stephen M. Walt, The Origins of Alliances (Ithaca, N.Y.: Cornell University Press, 1987); Paul Schroeder, “Histor- ical Reality versus Neo-realist Theory,” International Security, Vol.
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