Arms Control and Cooperative Security. Edited by Jeffrey A. Larsen, James J. Wirtz Boulder, CO: Lynne Rienner. 288 pp., $24.50 paperback (ISBN-13: 978-1-588-26660-6). Cooperating for Peace and Security: Evolving Institutions and Arrangements in a Context of Changing U.S. Security Policy. Edited by Bruce D. Jones, Shepard Forman, Richard Gowan. New York: Cambridge University Press, 2010. 348 pp., $88.00 hardcover (ISBN-13: 978-0-521-88947-6). Cooperating Without America: Theories and Case Studies of Non-Hegemonic Cooperation. Edited by Stefan Brem, Kendall Stiles. London: Routledge, 2009. 208 pp., $42.95 paperback (ISBN-13: 978-0-415-77727-8). The International Politics of Intelligence Sharing. By James Igoe Walsh. New York: Columbia University Press, 2010. 208 pp., $40.00 hardcover (ISBN-13: 978-0-231-15410-9). Nuance and detail are inevitable casualties in a review of four books that include three edited volumes. These works differ markedly in their explicit use of theory, breadth, preferred units of analysis, and reliance on rationality, power, and exogenously defined interest to explain state behavior. They also render opposing verdicts on the US contribution to global order and progress. But, in their scope and variety, these works say much about how we study—and no longer study—international security. Cooperation arising from shared interests, norms, international institutions, and even concessions of sovereignty is as prominent in these works as are rivalry and competition. Cooperating Without America , edited by Stefan Brem and Kendall Stiles, makes a commendable effort to link case evidence to realist, liberal, and constructivist theories, as outlined in the book's introduction. The explicit goal of each contributing author is to determine whether non-realist theories explain recent success in changing the international organizational agenda, forging new agreements, and altering norms of international behavior. The result is a provocative collection of essays on efforts to negotiate solutions to global problems posed by the trade in small arms, child soldiering, climate change, biosafety hazards, landmines, and violations of humanitarian law. In studying these cases, the authors refer to the lead role of NGOs, global activists, key states, and interstate coalitions; they recognize the advantages of forum shopping, building momentum through publicity campaigns, and lobbying at the national and regional levels; they acknowledge the value of applying lessons that are learned from promoting one issue (for example, landmines) to another (for example, child soldiers); and they see political payoffs in constructing coalitions both through compromise and through redefinition of interests. Together, the essays make a strong argument that scholars and policymakers must acknowledge the power of ideas, norms, non-state actors, and non-hegemonic coalitions—conceivably, …