Offering new readings of debates within the Wilson, Truman, Nixon, Bush, and Obama administrations, Hemmer asserts that heated debates, disagreements, and even confusions over U.S. grand strategy are not only normal but also beneficial. He challenges the claim that uncertainties or inconsistences about the nation’s role in the world or approach to security issues betray strategic confusion or the absence of a grand strategy. American foreign policy, he states, is most in danger not when debates are at their most pointed but when the weight of opinion crushes dissent. As the United States looks ahead to an increasingly multipolar world with increasing complicated security issues, Hemmer concludes, developing an effective grand strategy requires ongoing contestation and compromises between competing visions and policies.