THERE are no experts on the future. Generations of analysts have written speculatively about "the next war." A few of those analysts more or less "got it right." The trouble is that there is no way of knowing who among the legion of present-day pundits is more right than the others. The problems that render accurate prediction in the social sciences so difficult include complexity, discontinuity, and the self-fulfilling or self-negating prophecy (or conscious human agency). Complexity imperils all efforts at general understanding. If the mission is to speculate about the next war, or - more grandiloquently - the future of warfare, the probability of unearthing simple yet plausible predictions is restricted by the sheer scope of the subject, the variety of its components, and the interactions among them. War between whom? War in the 1990s, or the next century? And war over what?