Christopher Preble was the vice president for defense and foreign policy studies at the Cato Institute. He is the coauthor, with John Glaser and A. Trevor Thrall, of Fuel to the Fire: How Trump Made America’s Broken Foreign Policy Even Worse (and How We Can Recover) (Cato Institute, 2019), and the author of four other books, including Peace, War, and Liberty: Understanding U.S. Foreign Policy (Libertarianism.org, 2019) and The Power Problem: How American Military Dominance Makes Us Less Safe, Less Prosperous, and Less Free (Cornell University Press, 2009). He coedited, with John Mueller, A Dangerous World? Threat Perception and U.S. National Security (Cato Institute, 2014); and, with Benjamin H. Friedman and Jim Harper, Terrorizing Ourselves: Why U.S. Counterterrorism Policy Is Failing and How to Fix It (Cato Institute, 2010).