Drone Theory

Grégoire Chamayou’s Drone Theory arrived in English in 2015, two years after its French publication as Théorie du drone, and landed in the middle of the sharpest Western argument about remote killing to date. By the time the translation reached readers, the Obama administration had defended its targeted-killing programme in Yemen, Pakistan, and Somalia for most of a decade, John Brennan had been elevated from counterterrorism adviser to CIA director, and the leaked Department of Justice white paper laying out the legal basis for killing American citizens abroad was two years old. Chamayou, a philosopher attached to the Centre national de la recherche scientifique in Paris and already known in French academic circles for a history of manhunting, Les chasses à l’homme, approached the Predator and the Reaper not as a defence analyst or an international lawyer but as a historian of ideas, and he set out to show that the drone was not simply a new tool but a device that forced older concepts of combat, courage, sovereignty, and law to collapse in on themselves.

The central claim of the book is that the armed drone does not continue the tradition of aerial warfare so much as it ends it. For Chamayou, air power from Giulio Douhet onward still rested on an idea of combat — asymmetric combat, often ruthless combat, but combat in which both sides were in principle exposed to danger. The drone severs that last thread. What is left when the operator sits in an air-conditioned trailer at Creech Air Force Base in Nevada and the target walks on a dirt road in North Waziristan is not combat but hunting. Chamayou returns repeatedly to the vocabulary of the hunt: the pursuit of a quarry who cannot threaten the hunter, the patient surveillance, the lethal shot delivered without warning. He argues that this collapse of reciprocity, the reciprocal exposure to death that just-war theory from Augustine through Michael Walzer had taken as a hidden premise, undoes the moral grammar of warfare from within. If one side can never die, there is no duel; and if there is no duel, the categories that organise the laws and ethics of armed conflict stop fitting the thing they describe.

The book is organised as a sequence of short, numbered chapters grouped into five parts, each roughly thirty to fifty pages long, which lets Chamayou take the same object apart from several angles rather than build a single long argument. Part one, Techniques and Tactics, lays out what a drone is as a weapons system and what counterinsurgency doctrine does with it — the shift from the targeted strike against a named leader to the signature strike against patterns of life, the growing archives of surveillance footage, the compression of intelligence, judgement, and execution into a single kill chain. Part two, Genealogy of the Predator, traces the lineage of the unmanned aircraft back to the aerial-police fantasies of the interwar period, through the drones used over Vietnam and the Bekaa Valley, to the post-9/11 marriage of persistent surveillance and Hellfire missiles above the Federally Administered Tribal Areas. Part three, Necroethics, moves to the moral arguments produced by military ethicists in defence of the drone, which Chamayou treats as a case study in how the vocabulary of ethics can be enlisted to legitimise what it was once meant to constrain. Part four, The Essence of Combatants, addresses the legal and conceptual question of who may be killed, and traces the slow stretching of the category of combatant to the point where membership in a group, residence in a region, or the pattern of one’s movements becomes a sufficient basis for lethal targeting. Part five, Political Bodies, turns to the drone’s domestic consequences — what a state becomes when it fights wars that cost it nothing in the lives of its own citizens.

The concrete material Chamayou draws on is largely American, and anyone reading the book now will recognise most of the cases. He works through the CIA’s campaign in Pakistan after 2004 and the escalation under Obama, with its signature strikes against groups of men whose identities were not known at the time of attack. He discusses the 2011 killing of Anwar al-Awlaki in Yemen and the separate strike two weeks later that killed his sixteen-year-old son Abdulrahman, treating the second case as the point at which the stretched definitions of combatant and imminent threat broke down in public. He examines the leaked white paper on the legality of killing US citizens, the Harold Koh speech at the American Society of International Law in 2010, and the memos produced inside the Office of Legal Counsel. He also works through the operator-side material: the studies out of the Air Force School of Aerospace Medicine on the stress loads borne by sensor operators and pilots at Nevada and Missouri bases, the recurring reports of what some clinicians were calling moral injury, and the counter-literature from military ethicists arguing that remote killing is less psychologically costly, not more. He is unimpressed by both framings, and he suggests that the appearance of operator trauma has sometimes been enlisted by the services themselves as a way of reinstalling the figure of the suffering warrior into a form of combat from which risk has been removed.

The philosophical set pieces are where the book is most distinctive, and they are the chapters most quoted since. Chamayou devotes a long section to the arguments of the American philosopher Bradley Jay Strawser, who in 2010 published what became the best-known defence of drone warfare on just-war grounds, arguing that if a state has a duty to protect its soldiers from unnecessary risk, and a drone can prosecute a legitimate strike without exposing them, then the state has a duty to use the drone. Chamayou treats this as an unintentionally revealing argument. Strip the reciprocity out of combat, he says, and the ethics that remain are no longer the ethics of warfare but something closer to the ethics of a police action or an execution, and the political and legal consequences of that shift have not been thought through. He also engages at length with the argument that the drone, by permitting precise targeting, is a humanitarian weapon, and he turns that around by pointing out that the same precision that reduces one kind of civilian harm licenses a far wider geographic and temporal spread of lethal force. Pakistan, he notes, was not a declared theatre of war; the strikes nevertheless went on for years.

Beneath these cases runs a second argument about sovereignty. Chamayou draws on Carl Schmitt, on Michel Foucault’s lectures on security and territory, and on Hannah Arendt’s writing on imperial administration to argue that the drone changes the relationship between the state and the body of its own citizens. A state that fights its wars with the lives of volunteers has already loosened the bond between warfare and the citizenry; a state that fights them with machines severs it almost entirely. The democratic brake on war-making — the political cost of returning soldiers in body bags, the public argument about whose sons are being asked to die — ceases to function. What replaces it is a form of war that is cheap at home and permanent abroad, geographically unbounded, and legally improvised. He treats this as the most consequential of the drone’s effects, more consequential than any particular strike, because it reshapes what democracies are willing to do.

The treatment of law is unsparing. Chamayou tracks how the categories of international humanitarian law, built around identifiable armed forces facing one another in bounded conflicts, were adapted by American government lawyers to cover a transnational, open-ended campaign against a shifting cast of groups. He shows how the standard of imminent threat was redefined to the point of inversion, how the geography of hostilities was quietly extended to any place where a target was believed to be, and how the designation of a combatant was pulled free of its treaty-based moorings. His conclusion is not that the lawyers were acting in bad faith but that the pressure of a new weapon on an old legal vocabulary produces exactly these contortions, and that at some point the vocabulary breaks and should be rewritten rather than stretched further.

The book’s reception divided along predictable lines and some less predictable ones. In France, where it was first a philosophical event rather than a policy one, it was read as a continuation of a tradition of critical theory about technology and violence that runs from Paul Virilio through Étienne Balibar; the French reviews treated it as the first serious philosophical statement on remote warfare in that lineage. In the Anglophone world the response was warmer among critical scholars and cooler among military ethicists. Writers like Hugh Gusterson in his later book Drone and Derek Gregory in his essays on what he called the everywhere war picked up Chamayou’s framing and extended it empirically. On the other side, scholars working in the just-war tradition — Strawser himself, Avery Plaw, and others — pushed back on the claim that reciprocity is the deep structure of combat ethics, arguing that the asymmetries Chamayou treats as novel have long been present in air power, submarine warfare, and standoff artillery, and that the drone is a difference of degree rather than kind. The policy conversation moved on without resolving the argument. The Obama administration tightened its own rules on signature strikes in 2013; the Trump administration loosened them again in 2017; the Biden administration tightened them once more. The underlying legal architecture that Chamayou criticised remained in place.

What the book did not anticipate, and what dates it most clearly, is the shift from the asymmetric drone campaign of the 2000s to the drone-on-drone attritional warfare that has emerged in Nagorno-Karabakh in 2020 and, far more comprehensively, across the Ukrainian front since 2022. Chamayou’s drone is the American Predator, a scarce and expensive platform operated far from any serious threat; the drones of the Ukrainian and Russian lines are cheap, numerous, often first-person-view quadcopters assembled in workshops, and they kill the people operating them with some regularity. Reciprocity has returned, in a form that the 2013 book could not have foreseen, and so has the body count among the states doing the fighting. A reader coming to Drone Theory now has to hold two pictures at once: the manhunting drone of the global war on terror, which is still with us, and the industrialised swarm of the European land war, which is a different weapon doing a different thing. Chamayou’s framework still names something real in the first picture. It is less useful for the second.

For someone reading widely on artificial intelligence and warfare today, the book sits at a specific point in a growing library. It belongs on the shelf alongside Peter Singer’s Wired for War, which came out five years earlier and remains the best overview of the technology, Christopher Coker’s Warrior Geeks, which took on the same questions from a more conservative stance, and the more recent work of Paul Scharre, whose Army of None and Four Battlegrounds have become the standard English-language account of autonomy in weapons. Chamayou’s contribution is narrower and sharper than any of these. He is not interested in forecasting the next generation of systems; he is interested in what the current one does to the concepts a society uses to think about violence. Readers looking for granular detail on acquisition programmes, platform specifications, or operator tradecraft will not find it here. Readers looking for a historically literate philosophical account of what it means to kill without being killed will. The book pairs well with the Yemen and Pakistan chapters of Jeremy Scahill’s Dirty Wars, with the long-form reporting of The Intercept’s Drone Papers project from the same period, and with the counterarguments collected in the Strawser-edited volume Killing by Remote Control.

What is likely to age well is the central philosophical move, the insistence that a weapon which removes reciprocity from combat does not simply make combat safer for one side but changes the thing it still calls combat. That claim has only grown more pointed as autonomy has moved up the kill chain and as the political cost of launching a strike has continued to fall. What is already dated is the implicit picture of the drone as a rare and expensive American instrument used against technologically outmatched adversaries. The weapon has democratised; the asymmetry Chamayou described has not disappeared, but it is no longer the whole story. Drone Theory remains the clearest statement of what was at stake in the first generation of armed unmanned systems, and anyone who wants to understand how Western democracies talked themselves into a decade of extraterritorial killing without declaring war will find the argument laid out here with uncommon care.