Dominic Tierney is associate professor of political science at Swarthmore College. He received his Ph.D. in international politics from Oxford University, and has held fellowships at the Mershon Center at Ohio State University, the Olin Institute at Harvard University, and the John F. Kennedy School of Government at Harvard University. He is the author of Failing to Win: Perceptions of Victory and Defeat in International Politics (Harvard University Press, 2006), with Dominic Johnson, which won the International Studies Association award for the best book published in 2006, FDR and the Spanish Civil War: Neutrality and Commitment in the Struggle that Divided America (Duke University Press, 2007), and How We Fight: Crusades, Quagmires, and the American Way of War (Little, Brown and Co., 2010). His writing has appeared in The New York Times, The Los Angeles Times, International Security, and Orbis, among other outlets. He blogs regularly at The Atlantic.