Defense officials have for years talked about how drones will play a central role in future wars, but other than fiddling at the margins, little has been done to build a large, AI-enabled network of military uncrewed vehicles. The worry in Washington has been that Beijing is ahead of the United States in developing the military use of drones and its growing drone fleets could swarm and confuse the radars and air defenses of U.S. warships, and critical bases in Guam and Japan.