Yesterday, platforms ruled the conventional battlefield. After Ukraine, however, the large, complex, and the few, will have to yield to the small, simple, and the many. Systems composed of thousands of sensors, emitters, microbots and miniprojectiles, will, in concert, be able to detect, track, target, and land a weapon on any military object large enough to carry a human. This gives rise to two revolutions on the battlefield: pop-up warfare, and the Grid. Revolutions are signaled when the quality-quantity equation tilts decisively in favor of quality. During the run-up to Desert Storm, anxious calculations were made which contrasted Allied with Iraqi counts in manpower, tanks and aircraft. The execution of Desert Storm made it clear that the Iraqis could have fielded two or perhaps five times as many men, tanks, and planes without affecting the outcome. We were on one side of a revolution and they were on the other. Had the Iraqis had our quality capabilities, we would have had to conduct pop-up warfare. Pop-up Warfare. The driver for pop-up warfare is the evolution of precision guided munitions (PGMs) to the point that any object that can be located can be precisely targeted and, more often than not, destroyed. Pop-up warfare--what happens when two militaries with advanced technologies clash--puts a premium on minimizing one's own weapons signatures while amplifying the enemy's. Both sides must learn how to stay hidden most of the time, popping up just briefly to move or shoot, and then receding back into the background by disguising or eliminating their own signatures--and all of this inside of the enemy's precision strike cycle time. Pop-up warfare will evolve into a contest between stealth and anti-stealth, heavily in favor of anti-stealth. Hiders must suppress a bit-stream of information that constitutes their signatures. Seekers attempt to amplify these signals to read them. As information technology advances, so does the ability to amplify bits. No such mechanism favors suppression. Ultimately everything is findable. If nothing else, objects of a certain size have to occupy some space for some time. A virtual web strung across the Persian Gulf, if made fine enough, will eventually catch every missile launcher. Every trend in information technology favors the ability to collect more and more data about a battlefield, knitting a finer and finer grid, and thus capable of catching smaller and stealthier objects than before. The most effective way to spin this net would be from thousands of small objects. Because they piggyback atop commercial technologies they are most cost-effective, they can get much closer to the object being sought, and, best of all, deploy enough of them and they are too cheap to kill. The Grid. Such Grids will be built from thousands of sensors, emitters, and sub-nodes dedicated to the task of collecting every interesting signature and assessing their value and location for targeting purposes. It is unnecessary that any one object be able to sense all emanations. The more capabilities a sensor combines the more expensive they get, and thus the fewer could be used and the easier they would be to track and destroy. It suffices that various specialized single-purpose sensors communicate with each other and with sub-nodes to collectively form a picture of the environment. Cheap disposable emitters, in turn, will illuminate targets, generate confusing signatures, and broadcast local positioning signals for precise targeting. Full GPS capability is not required (and may be frequently jammed) as long as emitters that know where they sit can broadcast relative distances to the other elements of the Grid. Grid weapons will likely resemble today's PGM's and drones. Evolutionary improvements in energy chemicals suggest that the warheads and engines will be smaller, but not so small as to be revolutionary different. They will be capable of extended ranges, 1 meter CEP's, and significant loiter capabilities. The big change at the tip of the spear would be the logic of the seeker--or more precisely, what is left of the seeker. Today PGM's have to find targets on their own. Sometimes they get external help (laser or radar tags); sometimes their path is pre-programmed(e.g., cruise missiles); and sometimes they take advantage of heat signatures or pattern recognition. Each case is a nontrivial computation. Up to eighty percent of a PGM's cost is in the guidance and control, and most of that is the guidance. PGM's operating in a sensor grid, however, can use the latter's intelligence. If the PGM is given exact coordinates by "running lights" in the grid it can get there on its own. The less processing the PGM has to do, the less complex its guidance system, the cheaper it is to make, the more you can make, and they, too, begin to be too cheap to kill