12 Robert Legvold, “Russian Foreign Policy During Periods of Great State Transformation,” in Robert Legvold, ed., Russian Foreign Policy in the Twenty-First Century and the Shadow of the Past (New York: Columbia University Press, 2007), pp. 109–121.
13 John E. Herbst, William B. Taylor, and Steven Pifer, “When Sanctions Aren’t Enough,” Foreign Policy, March 31, 2014, http://foreignpolicy.com/2014/03/31/whensanctions-arent-enough/.
14 Stephen J. Blank, “Enter Asia: The Arctic Heats Up,” World Affairs (March/April 2014), p. 23, http://www.worldaffairsjournal.org/article/enter-asia-arctic-heats
15 Stephen J. Blank, “Introduction,” in Stephen J. Blank, ed., Politics and Economics in Putin’s Russia (Carlisle, Pa.: Strategic Studies Institute, 2013), pp. 1—34; è Office of the Director of National Intelligence, “Statement for the Record: Worldwide Threat Assessment of the U.S. Intelligence Community,” by James R. Clapper, Director of National Intelligence, testimony to the Senate Select Committee on Intelligence, January 29, 2014, p. 23, http://www.dni.gov/index.php/newsroom/testimonies/ 203-congressional-testimonies-2014/1005-statement-for-the-record-worldwide-threatassessment-of-the-us-intelligence-community.
16 Leslie H. Gelb and Dimitri K. Simes, “Beware Collusion of China, Russia,” National Interest (July/Augu st 2013), pp. 5—10, http://nationalinterest.org/article/bewarecollusion-china-russia-8640.
17 Marta Carlsson, Johan Norberg, and Fredrik Westerlund, “The Military Capability of Russia’s Armed Forces in 2013,” in Hedenskog and Pallin, eds., Russian Military Capability, pp. 37–39.
18 Ñì.: Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates, FY 2015 (Office of the Undersecretary of Defense, April 2014), http:// comptroller.defense.gov/Portals/45/Documents/defbudget/fy2015/FY15_Green_Book. pdf; è Michael E. O’Hanlon, The Science of War (Princeton, N.J.: Princeton University Press, 2014), p. 15.
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