His research interests include leadership, military innovation, the future of war, forecasting, and the relationship between religion and international politics. He has published in a wide array of peer-reviewed journals, as well as more popular outlets such as the New York Times, the Washington Post, Politico and Foreign Policy. He is the author of the award-winning book, The Diffusion of Military Power (Princeton, NJ: Princeton University Press, 2010). Professor Horowitz previously worked in the Office of the Undersecretary of Defense and is a term member of the Council on Foreign Relations. He received his PhD in government from Harvard University and his BA in political science from Emory University.