Cheap attack drones costing tens of thousands of dollars are forcing European militaries to rethink one of the most basic calculations of modern air defense: how much should it cost to destroy an incoming threat?
The war in Ukraine has demonstrated that a defender can technically win an interception while losing economically, particularly when missiles worth hundreds of thousands or millions of dollars are repeatedly used against mass-produced drones costing a fraction as much.
Germany and other NATO countries are now pouring money into interceptor drones, cheaper missiles and counter-drone systems designed to reverse that equation, while Ukraine’s battlefield experience increasingly shapes how Europe intends to defend its own skies.
The million-dollar missile problem
Russia’s widespread use of Iranian-designed Shahed attack drones in Ukraine has exposed a fundamental weakness in traditional Western air defenses.
The drones can be manufactured relatively cheaply and launched in large numbers, forcing defenders either to allow some through or expend far more valuable weapons destroying them. According to an April Reuters investigation, the Center for Strategic and International Studies estimated Russian Shahed models cost roughly $35,000 each to produce. Ukrainian interceptor drones, by comparison, can cost only several thousand dollars, with some models priced below $1,500.
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Ukraine has therefore increasingly turned to small interceptor drones that chase down and physically destroy the larger Russian aircraft.
“Even if you use 50 drones to shoot down one Shahed, it’s worth it,” Borys, a Ukrainian interceptor-drone unit commander, told Reuters. “One Shahed can fly in and destroy something far more valuable.”
The calculation is not simply about the price of the attacking drone. A relatively inexpensive Shahed that reaches its target can destroy electrical infrastructure, factories, military equipment or other assets worth millions of dollars.
But using sophisticated surface-to-air missiles against waves of inexpensive drones creates another problem: the defender can burn through limited stocks of advanced interceptors much faster than manufacturers can replace them.
A Patriot PAC-3 MSE interceptor, for example, costs roughly $4 million, according to U.S. Army budget documents cited by Reuters. Lockheed Martin announced in July that it is developing a less expensive Patriot interceptor costing less than half as much, although the new weapon is primarily intended for aircraft, cruise missiles and ballistic missiles rather than small drones.
The problem has become serious enough that NATO Secretary General Mark Rutte has publicly argued that the alliance cannot continue relying on expensive weapons to destroy cheap drones.
“Long-term we cannot continue by shooting down drones with very costly interceptors,” Rutte said during a June NATO press conference. Instead, he said NATO needs “interception techniques which are of the same costs as the drones.”
Rutte said the goal is to develop inexpensive counter-drone systems capable of defeating “low-cost drones and swarms before they can threaten our forces, before they can threaten our skies, our countries.”
That economic contest is now becoming one of the central problems shaping European air-defense strategy.
Germany turns to interceptor drones
Germany is becoming one of the most prominent European countries attempting to solve the problem.
On Sept. 2, Ukrainian President Volodymyr Zelensky said Kyiv and Berlin were finalizing a broad agreement covering the joint development of drones, missiles and related software following a conversation with German Chancellor Friedrich Merz.
“Our teams are already finalizing the text of the drone deal, and this will, among other things, definitely provide both Germany and Ukraine with additional defence capabilities,” Zelensky said, according to Reuters.
The agreement builds on an expanding German effort to finance mass drone production.
Germany is already supporting a program to supply Ukraine with roughly 15,000 Strila interceptor drones designed specifically to destroy Shahed-type attack drones, Reuters reported. Berlin is also financing an order for 50,000 Shrike attack drones produced by Ukrainian manufacturer SkyFall — one of the largest known drone purchases for Ukraine funded by a Western government.
German drone manufacturer Quantum Systems and Ukraine’s WIY Drones also formed a joint venture in April aimed at increasing production of interceptor drones and related air-defense technology.
The same thinking is driving a new generation of German defense startups.
Munich-based Tytan Technologies, founded in 2023 by two Technical University of Munich graduates after they participated in a Ukraine-related hackathon, is developing autonomous interceptor drones intended to provide a much cheaper response to hostile unmanned aircraft.
“Our founders had a very straightforward mission — restoring the economics of European air defence,” Tytan chief manufacturing officer Nemo Farber told Euronews in a report published Sept. 1.
The company has expanded its workforce roughly tenfold since its founding and is building additional production capacity as Germany dramatically increases military spending.
That shift reflects one of the central lessons Europe is drawing from Ukraine: an effective air-defense network cannot consist only of highly sophisticated missiles.
Instead, militaries increasingly envision layered defenses in which expensive weapons such as Patriot interceptors are preserved for difficult targets including ballistic missiles, while cheaper drones, guns, electronic warfare and lower-cost missiles deal with less sophisticated threats.
Ukraine is already operating such a system.
Reuters reported that Ukrainian defenses use a combination of interceptor drones, electronic warfare systems, machine guns mounted on vehicles, helicopters, fighter aircraft and traditional surface-to-air defenses. By April, Ukrainian officials said interceptor drones alone were destroying approximately 40 percent of Russia’s Shahed-type weapons and other long-range attack drones.
The technology is also evolving rapidly. Russia has increased the speed of some Shaheds and begun using jet-powered versions, forcing Ukraine to develop faster interceptors of its own.
That technological race means Europe is not merely purchasing Ukrainian designs. Increasingly, it is attempting to incorporate the battlefield lessons Ukraine has accumulated after years of defending against mass drone attacks.
NATO prepares for warfare at drone scale
The economic problem extends far beyond Germany.
European missile manufacturer MBDA announced a new Counter Mass Interceptor in July specifically designed to counter large numbers of inexpensive drones and other weapons, another indication that major defense contractors see mass attacks as a structural change in warfare rather than a temporary feature of Ukraine.
“Today in Europe, there is no sovereign system capable of addressing saturation,” an MBDA representative told Reuters.
Without such a system, the representative said, Europe remains dependent on “American, Israeli or other” foreign systems when dealing with large-scale attacks.
MBDA said it expects an initial version of its new interceptor to become available as early as 2028. Just as importantly, the company is looking at fundamentally different methods of producing the weapons.
“We are moving closer to an automotive-industry model,” the MBDA representative told Reuters. “The goal is to be able to manufacture at scale.”
That emphasis on mass production represents a significant change for a Western defense industry accustomed to manufacturing smaller numbers of highly sophisticated weapons.
Russia’s ability to send hundreds of drones toward a target in a single attack means an air-defense system must not only be technologically capable of destroying them; it must also possess enough interceptors to keep doing so night after night.
NATO has increasingly acknowledged that reality.
“Drones have fundamentally altered … the character of modern warfare,” Rutte said while announcing NATO’s new Drone Edge initiative in July. “They have become a decisive factor on the battlefield.”
Under the initiative, NATO allies have committed more than $40 billion to counter-drone capabilities over the next five years and plan to train five times as many military drone operators by the end of 2027. NATO is also establishing a counter-drone marketplace intended to help member states procure systems at greater scale and speed.
The alliance’s emerging strategy does not mean expensive missile defenses are becoming obsolete. Patriot and similar systems remain critical for destroying ballistic missiles and other sophisticated threats that inexpensive interceptor drones cannot reliably stop.
Instead, the change is about matching the weapon to the threat.
A multimillion-dollar missile may make sense against an incoming ballistic missile capable of devastating a city or military installation. Using that same class of weapon repeatedly against mass-produced drones creates an economic and industrial contest that defenders may eventually lose.
Ukraine has been forced to confront that calculation earlier than most Western countries.
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