Glenn H. Snyder creates a theory of alliances by deductive reasoning about the international system, by integrating ideas from neorealism, coalition formation, bargaining, and game theory, and by empirical generalization from international history. Using cases from 1879 to 1914 to present a theory of alliance formation and management in a multipolar international system, he focuses particularly on three cases Austria-Germany, Austria-Germany-Russia, and France-Russia and examines twenty-two episodes of intra-alliance bargaining. Snyder develops the concept of the alliance security dilemma as...