A historian’s occupational disease is to find old precedents for practically everything new that comes along. And that is true for remotely piloted aircraft (RPA) as well. In one way they are merely the continuation of the millennia-old human longing for methods of striking or observing one’s enemies while remaining safe. The purpose of this essay is to briefly explore that which is old, to dwell for a time on what seems to be new, and to conclude with some speculations about the future of unmanned systems....