Barry R. Posen is Professor of Political Science at MIT and a member of its Defense and Arms Control Studies Program.
The author would like to thank Omer Bartov, Liah Greenfeld, Jack Snyder, and Stephen Van Evera for comments on earlier drafts. The Committee on International Conflict and Cooperation of the National Research Council arranged for several helpful reviews. The Levitan Prize and the Carnegie Corporation of New York provided financial support.
1. For an example of such views, see Michael Howard, War in European History (New York: Oxford University Press, 1976), pp. 109-115; Carlton J.H. Hayes, Nationalism: A Religion (New York: Macmillan: 1960), pp. 120-124.
2. This definition is consistent with that offered by Ernst Haas, "What is nationalism and why should we study it?," International Organization, Vol. 40, No. 3 (Summer 1986), p. 709. It also draws on Karl W. Deutsch, Nationalism and Social Communication: An Inquiry into the Foundations of Nationality, 2nd ed. (Cambridge, Mass.: MIT Press, 1966), chap. 4, "Peoples, Nations, and Communication," pp. 86-105. I have also borrowed from Ernest Gellner, who posits that a shared "high" or literary culture is the fundamental element of nationalism. Because he views culture as the glue that holds industrial capitalism together, he sees the spread of capitalism as the main cause of modern nationalism. Below I develop a different argument. Gellner, Nations and Nationalism (Ithaca: Cornell University Press, 1983); for a useful summary, see pp. 139-143; and for elaboration, pp. 35-38.
3. The standard work is Kenneth Waltz, Theory of International Politics (Reading, Mass.: Addison-Wesley, 1979); see esp. pp. 123-128. "Contending states imitate the military innovations contrived by the country of greatest capability and ingenuity," p. 127. This is also the theme of Charles Tilly, ed., Formation of National States in Western Europe (Princeton: Princeton University Press, 1975). The essays in Tilly's collection stress competition and imitation in the development of the whole administrative apparatus of states, including their military; they address the development of nations less directly. See also Stanislav Andreski, Military Organization and Society (Berkeley: University of California Press, 1971), pp. 68-71.
4. William H. McNeill, The Pursuit of Power (Chicago: University of Chicago Press, 1982), pp. 123-124, views the Thirty Years War as the event marking the institutionalization of a "professional" officer corps in the sense of a Europe-wide, self-conscious group of technical experts in the "management" of violence, dedicated to the improvement of their craft. After the Thirty Years War, the institution of the standing army spread throughout Europe, providing regular employment for these professionals. As noted elsewhere in this article, the notion that one plied one's trade for a single state throughout one's career had not yet caught on.
5. Louis XIV put the largest ancien regime army into the field; at 450,000 it represented a feat unequalled by his royal successors. Russell F. Weigley, The Age of Battles (Bloomington: Indiana University Press, 1991), p. 260. By late 1793, the revolutionary government had 700,000 soldiers. Jean-Paul Bertaud, The Army of the French Revolution, trans. R.R. Palmer (Princeton: Princeton University Press, 1988), p. 243. Under Napoleon strength fluctuated, but between 1800 and 1812, 1.3 million conscripts were reportedly absorbed. McNeill, The Pursuit of Power, p. 200.
6. The germ of this argument is found in Carl Von Clausewitz, On War, ed. and trans. Michael Howard and Peter Paret (Princeton: Princeton University Press, 1976, 1984), pp. 591-593. Of France he notes, "in 1793 a force appeared that beggared all imagination. Suddenly war again became the business of the people . . . all of whom considered themselves to be citizens. . . . The full weight of the nation was thrown into the balance." Of the consequences, he wrote, "Since Bonaparte, then, war, first among the French and subsequently among their enemies, again became the concern of the people as a whole. . . . There seemed no end to the resources mobilized; all limits disappeared in the vigor and enthusiasm shown by governments and their subjects."
7. Most historians date the problem to the appearance of muzzle-loading percussion-fired rifles in the mid-1800s, but I find...