Stephen Peter Rosen is a Secretary of the Navy Senior Research Fellow at the Naval War College. This article draws from a book he is currently writing on military innovation in peacetime and war.
The author would like to thank the following people for their advice and criticism of earlier drafts of this article: Andrew Marshall, James Q. Wilson, Eliot Cohen, Aaron Friedberg, Chip Pickett, Barry Posen, and Barry Watts.
1. This definition has the slightly paradoxical effect of excluding some dramatic changes in military technology from the term "major military innovation." This point is illustrated by Vincent Davis' study of innovation of post-World War II U.S. Navy operations. Davis makes it quite clear that, in the cases he defines as innovations (the introduction of atomic bombs into the U.S. naval aviation strike force and the introduction of nuclear propulsion systems into the U.S. submarine forces), new technologies were used to help perform existing missions better, and not to change them radically. See The Politics of Innovation: Patterns in Navy Cases (Denver: University of Denver Press, 1967), pp. 7, 15.
2. It is doubtful that a single theory could explain military innovation in both the United States and Japan in the 1930s, for example, since military innovation in Japan in that period, unlike the United States, was occasionally associated with the murder of civilian officials by their military counterparts in order to resolve professional differences of opinion. See Hugh Byas, Government By Assassination (New York: Knopf, 1942).
3. The number of military organizations that did not innovate in response to defeat is large. See, for example, the case of the Czarist Army after the Russo-Japanese War discussed by John Bushnell, "The Tsarist Army after the Russo-Japanese War: The View From the Field," in Lt. Col. Charles R. Schrader, USA, Proceedings of the 1982 International Military History Symposium: The Impact of Unsuccessful Military Campaigns on Military Institutions 1860-1980 (Carlisle Barracks, Pa.: U.S. Army War College, 1982), pp. 77-99; and on the failure of the United States to innovate after its failure to win the mixed counterinsurgency and conventional war in Vietnam, John P. Lovell, "Vietnam and the U.S. Army: Learning to Cope With Failure," in George K. Osborn, ed., Democracy, Strategy, and Vietnam (Lexington, Mass.: Lexington Books, 1987), pp. 121-154.
4. The case of the introduction of nuclear propulsion into the United States Navy is not reviewed in this paper. An exhaustive study of Hyman Rickover has already laid to rest the myth, cultivated by Rickover himself, that it was only the maverick Rickover, supported by Congress, who forced nuclear propulsion upon a resistant Navy. See Norman Polmar and Thomas Allen, Rickover: Controversy and Genius (New York: Simon and Schuster, 1982), pp. 118-134. Conversely, the failure of intense presidential intervention to produce successful innovation in the area of counterinsurgency capabilities and to support the "mavericks" in the Special Forces has been thoroughly documented. See Andrew Krepinevich, Jr., The Army and Vietnam (Baltimore: Johns Hopkins University Press, 1986), Chapter 2, "The Revolution That Failed."
5. Although the case studies presented here focus on successful innovation, the best study of the failure of the Royal Navy to develop carrier aviation tends to support the hypothesis about intellectual revolutions and career paths advanced here. Many technical advances in aircraft carriers were made in the Royal Navy before they were made in the U.S. Navy, but British carriers were still seen as adjuncts to battleships, and aviators flying off of Royal Navy carriers could never advance to senior command in the Royal Navy, because they were Royal Air Force officers. Geoffrey Till, Airpower and the Royal Navy 1914-1945: A Historical Survey (London: McDonald and Jane's, 1979), pp. 45-47, 65, 74, 80, 139, 149.
6. In a case not discussed in detail here, the Office of the Secretary of Defense appears to have helped a group of senior officers who were innovators within the U.S. Army by protecting the advocates of airmobile helicopter warfare against their opponents within the Army. Lt. Gen. John J. Tolson, Vietnam Studies: Airmobility 1961-1971, Department of the Army (Washington...