Last summer, the death of Charles Krauthammer, a longtime columnist for The Washington Post, silenced one of the most influential voices in the world of U.S. foreign policy. After a diving accident left him partially paralyzed in 1972, Krauthammer went to on graduate from Harvard Medical School, practice psychiatry, and then enter politics, working as a speechwriter for Vice President Walter Mondale. After the end of the Cold War, Krauthammer, already known for his hawkish foreign policy views, embraced and helped define the concept of unipolarity—the idea that the competition between the United States and the Soviet Union had been replaced by a “unipolar moment,” in which the United States, for a limited time, had no serious rivals. Krauthammer went on to bitterly criticize what he saw as President Barack Obama’s retreat from U.S. responsibilities and what he deemed the fundamentally irresponsible approach of Obama’s successor, Donald Trump. In this book, Krauthammer’s son, Daniel, himself a writer, assembles some of his father’s most important columns. To read (or reread) them is to be reminded of how central the elder Krauthammer was to 30 years of American foreign policy debate.