1. For more on the different airpower approaches in World War II, see Conrad C. Crane, Bombs, Cities, and Civilians: American Airpower Strategy in World War II, Lawrence: University Press of Kansas, 1993.
2. Charles J. Dunlap, Jr., Technology and the 21st Century Battlefield: Recomplicating Moral Life for the Statesman and the Soldier, Carlisle, PA: Strategic Studies Institute, US Army War College, 15 January 1999.
3. Benjamin C. Schwarz, Casualties, Public Opinion, and U.S. Military Intervention: Implications for U.S. Regional Deterrence Strategies, Santa Monica: RAND, 1994;
4. Eric V. Larson, Casualties and Consensus: The Historical Role of Casualties in Domestic Support for U.S. Military Operations, Santa Monica: RAND, 1996.
5. On the Korean air war, see Conrad C. Crane, American Airpower Strategy in Korea, 1950–1953, Lawrence: University Press of Kansas, 1999.