Michael O'Hanlon is a fellow in foreign policy studies at the Brookings Institution and is Adjunct Professor of International and Public Affairs at Columbia University. His most recent book is How to Be a Cheap Hawk: The 1999 and 2000 Defense Budgets (Washington, D.C.: Brookings Institution, forthcoming 1998); he also contributed two chapters to a recent volume edited by Mike Mochizuki, Toward a True Alliance: Restructuring U.S.-Japan Security Relations (Washington, D.C.: Brookings Institution, 1997).
The author thanks Nick Beldecos, Stephen Biddle, Kurt Chicowski, Robert Crumplar, Tom Davis, Richard Dunn, Joshua Epstein, Julien Hartley, Eric Heginbotham, Payne Kilbourne, Christina Larosa, Frances Lussier, Mike Mochizuki, Eric Nyberg, and John Steinbruner for their invaluable assistance.
1. Statement of Lieutenant General Patrick M. Hughes, Director, U.S. Defense Intelligence Agency, before the Senate Select Committee on Intelligence, "Global Threats and Challenges to the United States and Its Interests Abroad," February 5, 1997, p. 11.
2. Reportedly, Pentagon models estimate about 50,000 U.S. and 500,000 South Korean military casualties during the first three months of war. See Don Oberdorfer, "A Minute to Midnight," Newsweek, October 20, 1997, p. 18.
3. Secretary of Defense Les Aspin, Report on the Bottom-Up Review (Washington, D.C.: U.S. Department of Defense, October 1993), pp. 13-22; and Secretary of Defense William S. Cohen, Report of the Quadrennial Defense Review (Washington, D.C.: U.S. Department of Defense, May 1997), pp. 12-13, 24-26, 30.
4. Michael O'Hanlon, How to Be a Cheap Hawk: The 1999 and 2000 Defense Budgets (Washington, D.C.: Brookings Institution, 1998).
5. The QDR reportedly varied this assumption about warning time in its sensitivity studies, but the standardized vision of regional war assumes some five to seventeen days of warning. See "Final Draft of Mobility Requirements Study Update to Go to Services," Inside the Pentagon, Vol. 10, No. 44 (November 3, 1994), p. 3; and Cohen, Report of the Quadrennial Defense Review, p. 24.
6. See, for example, Paul K. Davis and Richard L. Kugler, "New Principles for Force Sizing," in Zalmay M. Khalilzad and David A. Ochmanek, eds., Strategy and Defense Planning for the 21st Century (Santa Monica, Calif.: RAND Corporation, 1997), pp. 95-140.
7. See, for example, Ministry of National Defense, ROK, Defense White Paper 1996-1997 (Seoul: Korea Institute for Defense Analyses, 1997), p. 213; Ministry of National Defense, ROK, Defense White Paper 1995-1996 (Seoul: Korea Institute for Defense Analyses, 1996), p. 72; former Secretary of Defense Les Aspin, quoted in Lawrence J. Korb, "Our Overstuffed Armed Forces," Foreign Affairs, Vol. 74, No. 6 (November/December 1995), p. 25.
8. For a concurring view, see Marcus Noland, "Why North Korea Will Muddle Through," Foreign Affairs, Vol. 76, No. 4 (July/August 1997), pp. 105-118.
9. For example, North Korea may have a total of as many as 250 metric tons of chemical munitions, in nonpersistent and persistent forms, deliverable by a wide range of systems ranging from artillery to aircraft to missiles. See Defense Intelligence Agency, North Korea: The Foundations for Military Strength (October 1991), p. 60.
10. See, for example, Fran Lussier, U.S. Ground Forces and the Conventional Balance in Europe (Washington, D.C.: U.S. Congressional Budget Office, June 1988), pp. 7-28, 91-99. About one-fourth of the total NATO and Warsaw Pact forces were either deployed in the Germany-Poland-Czechoslovakia area or immediately deployable to that zone using prepositioned stocks. That made for a total of roughly 2.5 million troops and 60,000 armored vehicles in a zone with a front three times the length of the Korean DMZ—similar numbers, per kilometer of front, to what prevails near the DMZ. But forces in the Germanys, Poland, and Czechoslovakia were based as far away as 200 to 300 kilometers from the intra-German border, whereas most of those in the Koreas are within roughly 100 kilometers of the front.
11. James C. Wendt, "U.S. Conventional Arms Control for Korea: A Proposed Approach," RAND Note (Santa Monica, Calif.: RAND Corporation, 1993), p. 14; Don Oberdorfer, The Two Koreas (Reading, Mass.: Addison-Wesley, 1997), p. 313...