"Although it may take several decades for the process of transformation to unfold, in time, the art of warfare on air, land, and sea will be vastly different than it is today, and “combat” likely will take place in new dimensions: in space, “cyber-space,” and perhaps the world of microbes. Air warfare may no longer be fought by pilots manning tactical fighter aircraft sweeping the skies of opposing fighters, but a regime dominated by long-range, stealthy unmanned craft. On land, the clash of massive, combined-arms armored forces may be replaced by the dashes of much lighter, stealthier and information-intensive forces, augmented by fleets of robots, some small enough to fit in soldiers’ pockets. Control of the sea could be largely determined not by fleets of surface combatants and aircraft carriers, but from land- and space-based systems, forcing navies to maneuver and fight underwater. Space itself will become a theater of war, as nations gain access to space capabilities and come to rely on them; further, the distinction between military and commercial space systems – combatants and noncombatants – will become blurred. Information systems will become an important focus of attack, particularly for U.S. enemies seeking to short-circuit sophisticated American forces. And advanced forms of biological warfare that can “target” specific genotypes may transform biological warfare from the realm of terror to a politically useful tool."