1. Carl von Clausewitz, De la guerre Edition de Minuit, Paris, 1955, 755.
2. For a literature review of the internal causes of war, see Jack S. Levy, “Domestic Politics and War,” Journal of Interdisciplinary History, Vol. 18, No. 4, The Origin and Prevention of Major Wars, Spring 1988, 653–673.
3. Alexis de Tocqueville, De la démocratie en Amérique, Tome 1, GF Flammarion, Paris, 1981, 569.
4. Hans J. Morgenthau, Politics among Nations: The Struggle for Power and Peace Knopf, New York, 1948, 488.
5. Walter Lippmann, Public Opinion, 1st ed., Wilder Publications, Radford, VA, 1922, 226.