Preventive Engagement

The United States faces an increasingly turbulent world. The risk of violent conflict and other threats to international order presents a vexing dilemma: should the United States remain the principal guarantor of global peace and security with all its considerable commitments and potential pitfalls––not least new and costly military entanglements––that over time diminish its capacity and commitment to play this vital role or, alternatively, should it pull back from the world in the interests of