• drop 5 bombs in the same hole • and build a cheap set that navigates • and don’t you forget it!” The first goal was motivated by a desire to reduce or eliminate the civilian casualties and collateral infrastructure damage inherent in armed conflict. It didn’t take long for strategists to see beyond precise targeting to further ambitious uses for precise navigation. Prime among these was robotic resupply of the front lines. Any armed force is every bit as much a logistical enterprise as a fighting one. Resupply of ships at sea; refueling combat aircraft in the air; reprovisioning advanced units in remote, difficult or conflicted terrain.