Ross Harrison is on the faculty of the Walsh School of Foreign Service at Georgetown University, where he teaches graduate-level courses in strategy. He also teaches Middle East politics at the University of Pittsburgh. He has served on corporate advisory boards and worked with an international NGO on its strategic challenges. Harrison is a member of the Teaching Strategy Group with colleagues from the US Army War College and National Defense University and of the Global Futures Forum, sponsored by the US Department of State, and is the author of Strategic Thinking in 3D: A Guide for National Security, Foreign policy and Business Professionals. On Twitter: @georgetownprof