Michael O'Hanlon is a senior fellow and co-director with the Center for 21st Century Security and Intelligence and director of research for the Foreign Policy program at the Brookings Institution, where he specializes in U.S. defense strategy, the use of military force and American foreign policy. He is a visiting lecturer at Princeton University, an adjunct professor at Johns Hopkins University and a member of the International Institute for Strategic Studies. He has published numerous books and has written several hundred op-eds. Michael’s Ph.D. from Princeton is in public and international affairs; his bachelor's and master's degrees, also from Princeton, are in the physical sciences.