This book deals with the evolution, current status and potential of U.S.–India strategic cooperation. From very modest beginnings, the U.S.–India strategic partnership has developed significantly over the decade 2010–20. In considerable part this growth has stemmed from overlapping concerns about the rise and assertiveness of the People’s Republic of China as well as the instability of Pakistan. Despite the emergence of this partnership, however, significant differences remain. Some of them stem from Cold War legacies, others from divergent global strategic interests and from differences in institutional design. Despite these areas of discord, the overall trajectory of the relationship appears promising. Increased cooperation in several sectors of the relationship and closer policy coordination underscore a deepening of the relationship, while fundamental differences in national approaches to strategic challenges demand flexibility and compromise in the future.