In every era of airpower, advantage has depended on what could be concentrated and controlled: squadrons over targets, radar over the skies, networks over weapons. Drone swarms promise a new kind of concentration - not of a few exquisite aircraft, but of many cheap systems whose losses can be absorbed. That promise is also a warning. As air combat becomes more distributed, it can grow more dependent on fragile links, ambiguous identification, and delegated decision-making that is hard to supervise in real time. Drone Swarm Doctrine: Airpower After Pilots offers a clear framework for judging what swarms can and cannot do. It explains how drone swarm doctrine differs from simply launching many drones, and why command and control is the real centre of gravity: bandwidth, latency, authentication, and what happens when the link fails. It examines target identification under clutter and deception, the constraints imposed by rules and delegated authority, and the operational trade-offs between payload, range, endurance, and basing. It also maps how defenders adapt, from layered counter-drone systems to the systematic use of electronic warfare to jam, spoof, and manipulate the swarm's perception. Written for students, general readers, and analysts, the book treats swarming as a contest of systems rather than a triumph of novelty. By the end, readers understand why attritable mass can be decisive only when the organisation can sustain it - industrially, logistically, and cognitively - and how attrition warfare changes planning, learning, and risk. The result is a disciplined way to evaluate claims about autonomous airpower: not by hype or platform glamour, but by the resilience of communications, the credibility of identification, and the design of decision authority under pressure.