References
NATO 2020: Assured Security; Dynamic Engagement: Analysis and Recommendations of the Group of Experts on a New Strategic Concept for NATO. Brussels: NATO, 2010.
Helping Others Defend Themselves: The Future of U.S. Security Assistance." Foreign Affairs (2010). "
Opening NATO’s Door. New York: Columbia University Press, 2002.
NATO Istanbul Summit Communiqué., 2004.
The Revenge of Geography." Foreign Policy (2009): 96-105. "
U.S. Department of Defense Quadrennial Defense Review. Washington, D.C.: U.S. Department of Defense, 2010.
Testimony to the U.S. Senate Appropriations Committee. Washington, D.C., 2009.