He is an expert on U.S. grand strategy, international relations theory, and American foreign policy. His current research focuses on three subjects: the failure of U.S. efforts at burden sharing in NATO, the shifting balance of power in Asia, and the limited relevance of the Middle East to US national security. He has authored numerous policy studies and articles on topics including international relations theory, U.S.-China policy, U.S.-Russia policy, stabilization and reconstruction operations, and the policy approaches to a nuclear Iran. His articles have appeared in International Security, Foreign Affairs, The Journal of Strategic Studies, Strategic Studies Quarterly, Foreign Policy, The National Interest, Harvard International Review, Orbis, and The Foreign Service Journal, among others. Logan holds a bachelor’s degree in international relations from American University and a master’s degree in international relations from the University of Chicago.