Conclusion
This concluding chapter evaluates the implications that emerge from this book's theoretical and historical analysis for American foreign policy. The United States begins a new century as an unrivaled global power. American foreign policy makers need to be reminded what characteristics of the postwar order have made American power reasonably acceptable to other states and peoples during and after the Cold War. American power is not only unprecedented in its preponderance, but it is also unprecedented in the way it is manifest within and through institutions. This helps explain why it has been so durable. If American policy makers want to perpetuate America's preeminent position, they will need to continue to find ways to operate within international institutions, and by so doing restrain that power and make it acceptable to other states.