The Remote Revolution

Erik Lin-Greenberg arrived at this book through a familiar route for the discipline of international relations: a string of journal articles, a doctorate built around experimental survey work, and a faculty post at MIT’s political science department where the study of conflict short of war has gathered some of its sharpest practitioners. The Remote Revolution, published by Cornell University Press in 2025, gathers and extends that research programme into a single argument about how drones reshape the calculations leaders make when they reach for force. It joins a conversation that opened a decade earlier with Audrey Kurth Cronin, Sarah Kreps, and Paul Scharre — writers who argued, in different directions, that uncrewed systems were transforming either the cost of going to war, the politics of fighting it, or the rules that govern it. Lin-Greenberg’s contribution sits adjacent to all three and corrects all three on the same point: the focus on whether drones make wars more likely or more lawful has missed what may be the more important question, which is what happens between states once a drone is shot down, lost, or used against an adversary’s territory.

The central argument is deceptively simple. Drones change two thresholds at once and they change them in opposite directions. The first threshold is the decision to use force in the first place. Because a remotely piloted aircraft does not put a human in the cockpit, leaders contemplating a strike, a reconnaissance flight along a contested border, or a probe into a denied area face less domestic political risk than they would if they sent crewed platforms. Lin-Greenberg accepts what others have argued here — the cost calculus shifts, the threshold falls, the field of operations widens. The second threshold is what happens after force has been used and something has gone wrong. Here the conventional intuition runs that any military incident risks escalation, and that as states reach more often for force they will more often stumble into wider war. Lin-Greenberg’s evidence pushes hard against that intuition. The loss of a drone, or the destruction of a drone by another state, does not generate the public outrage, congressional pressure, or media cycle that the loss of a pilot would. Leaders therefore have political space to absorb incidents, to choose proportionate or symbolic responses, or to do nothing at all, where the same incident involving a manned platform would have demanded a forceful answer. The remote revolution, in this reading, both widens the use of force and dampens the escalation pressure that uses of force normally generate.

That dual finding is the spine of the book and it is what makes it interesting beyond the policy community that follows drone debates. It implies a particular kind of new normal — one in which drone shoot-downs, border violations, surveillance probes, and targeted strikes become routine background, where states gain a new vocabulary of limited signalling that bypasses the public’s tolerance for casualties. It also implies that the optimists who hoped drones would discipline state behaviour, and the pessimists who feared they would chain-react to wider war, are both wrong about the mechanism. The mechanism is political and audience-driven: the home-front cares less about machines than about people, and leaders respond accordingly.

The book moves through this argument in chapters that proceed roughly from theory to evidence to implication. Lin-Greenberg opens by setting the puzzle and the historical baseline — Cold War incidents in which the loss of a manned aircraft, like the U-2 over the Soviet Union or the EP-3 forced down on Hainan Island in 2001, generated significant crisis and required elaborate management. He then sketches the technological turn: the maturation of long-endurance, satellite-linked, remotely piloted aircraft, from the early Predator and Reaper of the American campaigns in Afghanistan, Iraq, and Pakistan through the proliferation of Israeli Heron, Hermes, and Harop systems, the Turkish Bayraktar TB2 and Anka, the Chinese Wing Loong and CH series, and the Iranian Shahed and Mohajer families. Subsequent chapters work through the theoretical framework in detail — how audience costs, public opinion, and media salience differ between manned and unmanned losses; how leaders weigh those differences in real time. The book then turns to evidence, marrying the kind of comparative case work familiar from political science with the experimental survey methodology Lin-Greenberg has used in his journal articles. He runs scenarios past American respondents and asks how they respond to a drone shot down by Iran versus an F-16 shot down by Iran, or to a Chinese drone violating contested airspace versus a Chinese fighter doing the same. The pattern is robust: the public reads the loss of metal differently from the loss of a person, and politicians who read the public read accordingly. Later chapters extend the framework outward — to whether the argument holds for adversaries with different political systems, to whether it applies in counter-terrorism operations or only in interstate crises, and to how the spread of relatively cheap armed drones changes the geometry of regional balances.

The case material is the place where the book becomes most useful for a reader following AI and autonomous systems in defence. Lin-Greenberg returns repeatedly to the 2019 shoot-down of an American RQ-4 Global Hawk by Iran, an event that on a manned-platform baseline would almost certainly have produced a kinetic American response. President Trump publicly mused that he had aborted a planned strike at the last moment, citing the disproportion of killing Iranians in retaliation for the loss of an aircraft. Lin-Greenberg reads this not as a one-off personality choice but as a typical case of the dampening effect — the political space for restraint that drones create. The Soleimani strike of January 2020 figures as a counter-case, where the United States used a drone to do something with very significant escalatory potential, and where the absence of an American body to be displayed or repatriated arguably softened the Iranian response into a calibrated missile barrage on bases in Iraq, signalling without killing Americans. The 2020 Nagorno-Karabakh war between Azerbaijan and Armenia is treated as the first conflict in which one side’s combination of Turkish Bayraktar TB2 strike drones and Israeli Harop loitering munitions did decisive damage to a conventional army built around Soviet-era armour, and as a demonstration of how drones can substitute for the air forces that smaller states cannot afford. Turkey’s use of TB2s in Syria against Russian-backed Syrian regime forces in early 2020, in Libya against forces aligned with Khalifa Haftar, and later as a sales platform that reshaped the Black Sea region all receive attention. The Houthi campaign of drone and one-way-attack-munition strikes against Saudi infrastructure — particularly the 2019 Abqaiq attack on Aramco — sits in the book as evidence that the dampening effect can also cut the other way, allowing a non-state or proxy actor to land blows that would, with a manned aircraft, have demanded a war. The Russian use of Iranian-built Shahed-136 loitering munitions against Ukrainian cities and infrastructure beginning in late 2022 is treated as a refinement of the same pattern, in which a state at war can outsource and obfuscate the platform of attack to manage international response.

Around these cases, Lin-Greenberg lays out the supporting evidence: news content analyses showing how American press cover drone incidents compared to manned-aircraft incidents; survey experiments asking respondents how angry they are at the loss of a drone, how strongly they want a military response, how much blame they assign to the president; comparative work on parliamentary debates in countries that have lost drones; interviews with American military officers and officials about the political calculations behind drone deployment decisions. The methodological mix is itself one of the book’s contributions to the field — a demonstration that experimental social-science methods can speak directly to questions previously left to historians of crisis bargaining and area specialists.

A final cluster of cases pushes outward into questions of proliferation and emerging capability. Lin-Greenberg discusses the spread of armed drones to middle and small powers, the increasingly congested skies over places like the Persian Gulf and the Eastern Mediterranean, and the implications of growing autonomy for the argument. He is careful not to fold autonomy into drones and assume the political logic stays the same. Where a drone with a human operator is still associated with the state that flew it, an autonomous loitering munition may decouple the action from any identifiable individual decision, complicating attribution and changing how a target state will respond. The book treats AI-enabled autonomy as a frontier rather than a settled fact and frames the next decade of research on its political effects as the open agenda.

The reception in the field has been substantive. The book extends and qualifies the strand of work that Sarah Kreps opened in Drones: What Everyone Needs to Know and Drone Warfare, and develops in a different direction from Hugh Gusterson’s anthropological reading in Drone: Remote Control Warfare. It also corrects the more apocalyptic readings — including those in some of Paul Scharre’s framing in Army of None — that have leaned heavily on the threshold-lowering side of the argument without addressing the threshold-raising side. Cronin’s Power to the People, which read drones as one of several technologies decentralising the means of violence, is treated as complementary rather than rival. Lin-Greenberg’s experimental work has drawn pushback from scholars who question whether American survey respondents are a good proxy for the politics of authoritarian or hybrid regimes — a fair criticism that the book itself addresses by extending the design to Israeli and other publics in some chapters, while acknowledging that authoritarian audience costs remain methodologically difficult to measure. Doctrinal reception has been more cautious. American and allied officers have read the book, with some accepting the descriptive claim that drone losses are absorbed more easily, while questioning whether that absorption is a stable feature of the political environment or a temporary effect that will erode as drones become so embedded in operations that their loss begins to carry political weight similar to the loss of any high-value capability. There has also been pushback on whether the dampening effect holds when drones strike civilian infrastructure or kill named individuals, as opposed to being shot down in the abstract; the Soleimani case and the Houthi-Aramco case sit at the edge of what the framework can cover.

For a reader trying to navigate the literature on AI and uncrewed systems in conflict, the book sits at a specific and useful place. It is the closest thing to a settled political-science account of why drones change crisis dynamics, written in a style that respects both the cases and the methods. It is not a technological survey — readers wanting the engineering, the swarm-control architectures, the autonomy stack, or the contractor landscape will need to look elsewhere, to writers like Scharre, to industry analyses, or to the recent technical literature on collaborative combat aircraft. It is also not a legal or normative account; for that, the work of Michael W. Lewis, Mary Ellen O’Connell, and others remains primary. It pairs well with Kreps on the political economy of drone proliferation, with Cronin on the diffusion of military power, with Antoine Bousquet on the longue-durée history of the targeting gaze, and with Andrew Cockburn’s reporting on how the American drone campaigns evolved in practice. For someone reading widely on the contemporary war landscape — the trenches and Shahed strikes of Ukraine, the Bayraktar exports out of Istanbul, the Houthi campaign across the Red Sea, the Iranian and Chinese drone families now showing up in third-party arsenals — Lin-Greenberg supplies the political logic that makes the operational details legible.

What is likely to age well in the book is the framework itself. The asymmetry between how publics process the loss of metal and the loss of people is not a technology-specific finding; it will probably generalise to autonomous ground vehicles, uncrewed surface and underwater platforms, and the broader robotic substitution that is now reshaping every domain of conflict. The case material around 2019 to 2024 will date, as case material always does. The questions about autonomy — what changes when no human is in the targeting loop, what changes when the platform decides — are left open by design, and the field is moving fast enough that the answers will look different by the end of the decade. The Remote Revolution will be remembered as the book that put the political economy of drone use on firm empirical footing, and as a useful corrective to the more excitable forecasts on both sides of the debate. The remote part of the revolution, Lin-Greenberg concludes in effect, is what has changed war the most — not the missiles, not the sensors, but the absence of a body in the airframe and the political quiet that absence creates.