"Democracies, particularly those blessed with good geography, usually favor domestic over defense needs in times of relative peace. This phenomenon reflects political realities which are sometimes--but not necessarily--related to perceived threats to national interests and to those of one's allies. Recent US budgets and funding projections demonstrate that the United States presently is in such a period. This article examines the nature and status of that segment of US industry, science, and technology known to some as the defense technology and industrial base. The defense sector of the US economy comprises those business firms, laboratories, and academic institutions that provide products and services to the Department of Defense and to foreign customers."
U.S. Army War College, Parameters: http://www.carlisle.army.mil/usawc/parameters/
Parameters: United States Army War College Quarterly (Summer 1997), v.27 no.2, p.26-51