INVESTIGATION: The Hornet drone forces Russia to build a five-layer defense

Introduction: A drone that rewrites the rules of electronic warfare

The Hornet, also known as the Martian-2

On the Ukrainian battlefield, certain weapons systems become markers of an era. The Hornet drone — also known as the Martian-2 — is one of them. This Ukrainian strike drone, operating in some of the most intense electronic jamming conditions ever documented, has forced Russian forces to build an entirely new, complex, five-layer countermeasure system. This is not a marginal improvement to Russian air defenses. It is a structural response to a system that, according to Russian sources themselves, remains difficult to neutralise effectively.

On July 1, 2026, the specialist outlet Militarnyi published a detailed analysis of the Russian countermeasure system developed specifically against the Hornet. This analysis, based on the statements of Russian propagandist Aleksey Smirnov, reveals a startling reality: "There is currently no universal and proven system capable of countering the Hornet." For a Ukrainian drone facing the military machine of a major nuclear power, that is a remarkable admission.

Why this drone is so hard to shoot down

The Hornet operates in an unusually wide frequency band — approximately 160 to 450 MHz — with horizontal signal polarization. These two characteristics make it difficult for conventional Russian electronic warfare systems to detect, since their signature databases did not initially include this drone. The Ten detector family, initially deployed to detect Ukrainian drones, was simply unable to automatically identify the Hornet — its signal parameters were absent from their databases.

Some variants of the Hornet use Starlink satellite communications to maintain the data link with the operator, an additional communication layer that conventional radio detection systems are not designed to intercept in this context. This combination of technical characteristics — atypical frequency band, horizontal polarization, satellite option — makes it a particularly complex target for Russian defenses.

Layer one: hunting the operator through Kalina

Kill the shooter, not the bullet

The first Russian line of defense against the Hornet is not directed at the drone itself — it is a radically different tactic. It targets the operator. The Russian radio-intelligence system Kalina sits at the core of this approach. Equipped with directional detectors, the Kalina can identify the characteristic emissions of Starlink terminals from several kilometres away, and determine the direction of the source signal.

This approach is strategically shrewd: if you cannot shoot down the drone quickly and reliably, you target the person controlling it. A neutralised operator means a drone that loses its guidance and becomes useless or crashes. For Hornet variants that depend on Starlink, this vulnerability is real — though Ukrainian engineers are actively working to close it through various alternative navigation solutions.

Fiber-optic drones and Ukrainian countermeasures

The Kyiv-based company Himera illustrates perfectly how Ukraine responds to the jamming problem. Documented by Euromaidan Press on June 26, 2026, the company develops lightweight mesh networks, portable radios weighing around 300 grams — compared to one kilogram for competitors — and repeaters that can be deployed from drones in forward positions. The mesh network continues functioning even if certain nodes are neutralised.

The Ukrainian response to the operator-targeting problem also involves fiber-optic drones for short-range operations, and the development of autonomous navigation systems of the DSMAC type — comparing terrain images with stored reference data — that do not depend on an interceptable radio signal. On this technological front, Ukraine is developing counter-countermeasures at a pace the Russians are struggling to match.

Layer two: the reconfigured Groza electronic warfare system

Groza-07K and Groza-03: adapting to the Hornet's frequencies

The second layer of the Russian defensive system relies on the Groza-07K and Groza-03 electronic warfare systems. These systems, initially designed for other frequency ranges, have been specifically reconfigured to match the Hornet's atypical operating frequencies — between 160 and 450 MHz. Their antennas have also been adapted to operate in horizontal polarization, or simultaneously in both polarization planes, to maximise jamming effectiveness.

This reconfiguration is not trivial. It reveals that Russian forces could not simply deploy their existing systems: they had to modify them. That is an indirect acknowledgment of the Hornet's sophistication — and of the human and technical resources devoted to countering it. Every hour of Russian engineering spent reconfiguring the Groza systems is an hour not spent on anything else.

The limits of jamming: range and mobility

The Groza systems offer a defined jamming range. They essentially create an electronic inhibition zone around protected positions. But this coverage is neither total nor infallible. Terrain, obstacles, weather conditions, and the mobility of infantry units create blind spots. And Ukrainian engineers, by observing jamming patterns, can theoretically guide their drones through less-covered zones.

The RAND Corporation has noted that "mastery of the electromagnetic spectrum is now essential for digitised armies dependent on sensors, satellites, and networked systems." This reality applies to both sides of the front. Russian forces seek to blind Ukrainian drones; Ukrainian forces seek to maintain their data links. It is a spectrum war as much as a war of metal.

Layer three: radar detection with the Ten family

Signature libraries updated under pressure

The third Russian defensive layer relies on the Ten detector family — radio-intelligence systems capable of automatically detecting and identifying drones by their electromagnetic signatures. The initial problem: the Hornet simply did not appear in their signature libraries. Its signal parameters — frequency band, polarization — were atypical enough to make automatic identification impossible.

This gap forced Russian forces to urgently update the Ten detectors' databases to include the Hornet's signature. It is a process that takes time and requires precise information about the target drone — information that can change if the Ukrainians modify their parameters. In the drone war, signature update cycles are as important as drone production cycles themselves.

Coverage zones and blind spots

Detection efforts focus primarily on frontline areas where standard Hornet variants, using conventional radio links, operate most frequently. Coverage is less complete for variants using Starlink, which are handled separately by the Kalina system. This segmentation by variant type reveals the growing complexity of the Russian countermeasure taxonomy.

Updating signature libraries is an ongoing process, not a stable state. Each new version of the Hornet — or any other Ukrainian drone — can potentially defeat detection calibrated for the previous version. This dynamic creates permanent pressure on Russian engineering teams, who must stay current in a rapidly evolving electronic warfare environment.

Layer four: mobile close-range fire teams

Armed pickups against sophisticated drones

The fourth layer of the Russian defensive system is the most rudimentary in appearance — and one of the most effective in practice. Mobile fire teams operate from pickups or off-road vehicles, equipped with Kord heavy machine guns, DShKM, Utyos, or ZU-23-2 twin 23mm anti-aircraft cannons. These teams coordinate with observation posts and deploy rapidly toward the area where a drone threat has been detected.

This high-rate-of-fire anti-drone system is effective in the close-in defense zone immediately around protected installations. Its strength lies in its mobility: a fixed team is easy to bypass; a mobile team receiving real-time alerts is much harder to avoid. Its weakness: it requires accurate prior detection to deploy at the right place, at the right moment.

FPV drones as interceptors

Russian forces also deploy FPV (First Person View) drones in the close defense zone. These interceptors are used to physically destroy the Hornet, either by direct collision or by detonating a small explosive charge nearby. This drone-versus-drone tactic has become a standard battlefield practice — a response to a fundamental asymmetry: it is often cheaper to shoot down a drone with a drone than with an anti-aircraft missile.

The tactic has constraints, however: FPV drones themselves need operators, a stable data link, and prior detection to be guided toward their target. In an intense jamming environment — like the Ukrainian front — the coordination chain between detection systems and FPV interceptor drones is fragile and easily disrupted.

Layer five: the Yolka interceptor, the specialist killer

A VTOL at 200 km/h with automatic target acquisition

The fifth and final Russian defensive layer against the Hornet is the most sophisticated: the specialised interceptor Yolka. It is a high-speed VTOL quadcopter (vertical take-off and landing), capable of reaching 200 km/h, equipped with an automatic target acquisition system based on a neural network. The Yolka can be hand-launched or deployed from a compact launch platform.

What makes the Yolka particularly remarkable is its autonomy: its neural network system allows it to identify and pursue its target without constant human guidance. It is an artificial intelligence capability applied directly to the anti-drone defense problem. Once launched, it can theoretically operate even in jamming conditions that would render a manually guided drone useless.

The limits of the last resort

The Yolka is described as a last-resort system in the Russian defensive architecture — deployed when the other layers have failed to neutralise the threat. Its deployment implies that the enemy drone has already passed through the first four layers and is approaching its target. In that context, the Yolka's engagement speed is critical: at 200 km/h, it can intercept drones that have outrun slower systems.

But even the Yolka has constraints. Its neural network must have been trained on the Hornet's visual characteristics. Its effective range remains limited by its flight endurance and onboard energy. And, like any complex system, it can be defeated by modifications to the target's shape or thermal signature. The technological race between the Hornet and the Yolka is a micro-version of the broader arms race between the two belligerents.

The Starlink signal: the variable that changes everything

A dependency that creates an exploitable vulnerability

Some Hornet variants use Starlink communications as their primary data link. This option provides extended range and robustness against conventional jamming — Starlink terminals operate at frequencies and with protocols very different from traditional radio links. But it also creates an exploitable vulnerability: Starlink terminals emit a distinctive signal detectable by the Kalina system.

The Ukrainian solution to this dilemma is multifaceted. First, diversify communication systems across drones — some using Starlink, others conventional radio links, still others autonomous navigation systems with no active link. This diversification complicates the task of Russian forces, which must deploy different types of countermeasures depending on the variant encountered. Then, develop intermittent communication protocols that minimise the detection exposure window.

Ukrainian communications architecture as a countermeasure

The Kyiv-based company Himera, documented by Euromaidan Press, illustrates the Ukrainian systemic approach. Its mesh networks allow units to maintain communications in environments where each individual signal type would be jammed. Himera's R1 repeater can connect to satellite terminals like Starlink while serving as a node in a local mesh network — combining the advantages of both architectures.

The Ukrainian communications doctrine in intense jamming zones — documented by Mykyta Puz, technology liaison with the Azov Corps — demands systems that are "truly scalable, robust, designed for battlefield use." The objective articulated by Misha Rudominski, co-founder of Himera, is significant: "It's not about making it impossible. It's about making it very difficult and very complicated and very costly, so that your enemy decides to spend their resources on something else."

The world's most jammed battlefield

A global laboratory of electronic warfare

The Ukrainian front is officially recognised as the most electronically jammed battlefield in history. Russian forces deploy an impressive range of electronic warfare systems: the Murmansk-BN strategic jammer capable of reaching hundreds of kilometres, the Krasukha-4 broadband jammer, the R-330Zh Zhitel targeting VHF and UHF frequencies, and the Pole-21 GPS suppressor. The recent trend is toward deploying smaller, less powerful, but more numerous and more dispersed solutions — making mapping and neutralising these systems exponentially more difficult.

In this context, every Ukrainian drone that reaches its target is a technical victory as much as a military one. And the creation of a Russian five-layer defensive system specifically dedicated to the Hornet is, paradoxically, the finest proof of its effectiveness. You do not build a complex architecture against something that does not work.

Exportable lessons from the Ukrainian war

The Spanish FENIX programme, documented by Defence-UA in June 2026, incorporates navigation and control technologies tested in Ukraine — notably through Navigation-Grupo Oesía, whose DSMAC-type system is integrated into the Ruta cruise missile-drone from Dutch company Destinus, supplied to Ukrainian forces. Shield AI's Hivemind system has been tested with the Hornet strike drone and the V-BAT reconnaissance drone. Ukrainian drones had accumulated more than 3,000 km of flight experience with the Western navigation module Osiris.

These connections illustrate how the war in Ukraine has become the primary accelerator of military drone innovation worldwide. Technologies developed and tested under real combat conditions — anti-jamming navigation, autonomous swarms, VTOL interceptors, tactical mesh networks — are migrating to other military programmes at a speed unprecedented in modern defense history.

The Russian admission: "no universal system"

When propaganda tells the truth

The most revealing statement in this entire analysis comes from an unexpected source: Russian propagandist Aleksey Smirnov himself, describing the countermeasure methods against the Hornet. His conclusion: "There is currently no universal and proven system capable of countering the Hornet." This sentence, extracted from a pro-Russian source, is the best possible summary of the situation.

Building a five-layer defense is the response to this absence of a universal solution. Each layer compensates for the gaps in the others: operator detection through Kalina fails if the operator stays mobile; Groza jamming fails if the drone navigates autonomously; mobile fire teams fail if initial detection is late; FPV drones fail if jamming degrades their guidance; and even the Yolka can be defeated by target modifications.

What this reveals about Ukrainian innovation

Analysis of the Russian defensive system reveals in outline the Hornet's qualities: it is fast, operates in a frequency band difficult to jam, can use multiple types of data links, and its operator can remain mobile to avoid targeting. These characteristics are not accidental — they are the result of engineering deliberately designed to circumvent existing defenses. Ukrainian engineers studied Russian countermeasures and built their drone to bypass as many of them as possible.

This is the dialectic of wartime innovation: each advance by one side forces the other to respond, which forces the first to adapt, in a continuous cycle of forced mutual improvement. On the Ukrainian front, this cycle plays out over weeks, not years — creating a pace of military technological innovation without precedent in the modern history of warfare.

Implications for Western defense doctrine

What the West must retain

The Russian five-layer defensive system against the Hornet contains valuable lessons for every Western military planner. First lesson: modern strike drones are asymmetric threats requiring multi-layer responses. No single system can counter them effectively — not radar, not electronic warfare, not interceptors. Defense must be integrated, redundant, and adaptive.

Second lesson: the electronic signature war is as important as the materials war. A drone your detectors cannot recognise is a drone you cannot shoot down, regardless of the sophistication of your weapons systems. Maintaining up-to-date signature libraries, developing detectors capable of identifying atypical signals, integrating machine learning into detection systems — all of this has become an absolute priority of modern defense.

The systemic cost of a single effective drone

There is an economic dimension to this story worth highlighting. The Hornet is a relatively inexpensive drone compared to the countermeasure systems that Russian forces have had to deploy against it: the Kalina, the reconfigured Groza systems, the Ten family updates, the mobile fire teams, the FPV interceptor drones, and the specialised Yolka. The sum of these Russian defensive investments probably far exceeds the manufacturing cost of the Hornets that made them necessary.

That is precisely the objective of asymmetric deterrence: force the adversary to commit disproportionate resources to defense. If every Hornet shot down costs Russia ten times its own value in deployed countermeasures, the military mathematics favour Ukraine. And this logic applies well beyond the Hornet alone.

The Ruta drone and swarms: the next frontier

Technologies migrating from the field to the product

Technologies tested in Ukraine are already migrating to the next generation of systems. The Ruta cruise missile-drone from Dutch company Destinus, supplied to Ukraine, integrates a DSMAC-type navigation system developed by Navigation-Grupo Oesía — the same supplier equipping the Spanish FENIX drone swarm programme. These connections illustrate how the Ukrainian laboratory is accelerating global military development.

Shield AI's Hivemind system, already tested with the Hornet and the V-BAT, represents the next step: drone swarms coordinated by artificial intelligence, capable of operating autonomously even in GPS-degraded and jamming-intensive environments. Against such a system, the five-layer defense developed against the Hornet would face a threat of an order of magnitude higher. A single drone can be intercepted; a swarm of ten, AI-coordinated, is exponentially harder to counter.

Russia fights back with its own swarms

It should be noted that Russia is also developing its own drone swarm capabilities. The Russian trend toward deploying smaller, less powerful, more numerous, and more dispersed solutions in electronic warfare reflects the same logic applied to attack systems: saturate defenses through quantity rather than individual sophistication. This saturation doctrine is a natural response to point defense systems that can intercept individual drones but are overwhelmed by a wave.

The evolution of the drone war in Ukraine suggests that future major conflicts will be fundamentally different from all that preceded them. Aerial dominance no longer belongs exclusively to conventional air powers. It is contested drone by drone, signal by signal, signature library by signature library, in an electromagnetic space that armed forces are only beginning to fully understand.

What this says about the war in Ukraine: resistance and ingenuity

An army that innovates under fire

The sophistication of the Hornet and the Russian defensive response it generated say something important about the nature of the war in Ukraine. This is not a symmetric conflict between two conscript armies equipped with Soviet-era weapons. It is a technological war of unprecedented intensity and innovation pace, in which Ukrainian forces have developed a remarkable military engineering culture capable of adapting and improving their systems in cycles of weeks.

The company Himera, with its 300-gram radios and drone-deployable mesh networks, illustrates this culture. The doctrine articulated by Rudominski — "Ukraine never asks for the best. Ukraine asks for what is perfectly suited to this task, and then in large quantities" — is the expression of a pragmatic and effective military philosophy. Not maximum technological perfection, but maximum operational relevance. Not maximum sophistication, but maximum robustness.

The price of Russian unpreparedness

On the other side, the Russian response to the Hornet reveals insufficient initial planning. The absence of the Hornet's signature from the Ten detectors' databases; the need to reconfigure the Groza systems for frequencies initially not covered; the construction of a complex defensive architecture after the threat emerged rather than in anticipation — all of this suggests that Russian forces had not anticipated the emergence of a drone with these specific characteristics.

Tactical surprise is what forces strategic adaptation. Ukraine created that surprise. And while Russia adapted its countermeasures, Hornet drones continued reaching their targets. That is the fundamental value of technological initiative: it gives you a window of effectiveness during which the adversary cannot yet respond. In that window, missions are accomplished, targets are destroyed, Ukrainian soldiers' lives are saved.

The complete architecture: synthesis of the five layers

A system built through accumulation, not planning

In synthesis, the Russian defensive system against the Hornet presents itself as an architecture built through reactive accumulation rather than anticipatory planning. The first layer — targeting the operator via Kalina — is a response to the impossibility of reliably shooting down the drone directly. The second layer — reconfigured Groza jamming — is an adaptation to the Hornet's atypical frequency band. The third layer — updating Ten libraries — fills a detection blind spot. The fourth layer — mobile fire teams — provides close-in defense. The fifth layer — the Yolka interceptor — constitutes the high-tech last resort.

This five-layer architecture is not the result of an established doctrine. It is the sum of responses to a problem that Russia did not anticipate. And that is precisely what Ukraine seeks to do: pose new problems, force costly adaptations, maintain technological initiative. As long as Ukraine remains capable of innovating faster than Russia can adapt its defenses, this advantage will remain operational.

What the Hornet prefigures

The Hornet is today. Shield AI's Hivemind — AI-coordinated drone swarms — is tomorrow. The progression of these technologies, accelerated by the war in Ukraine, will redefine combat doctrine for the coming decades. Armies that fail to integrate these lessons — the importance of mesh networks, anti-jamming navigation systems, multi-layer defensive architectures, rapid innovation cycles — will be exposed to surprises similar to what the Hornet inflicted on Russian forces.

And for all of Ukraine's allies, the invitation is clear: fund, support, and protect this innovation capacity. Not only because Ukraine deserves that support — it does, fully — but because the Ukrainian laboratory produces military knowledge of a strategic value that democracies would take decades to acquire any other way.

Ukraine over the next two years: maintaining the lead

The innovation cycle as a strategic weapon

Ukraine's technological advantage in drones is not permanent. It is the result of initiative — a lead won through necessity and ingenuity. Maintaining that advantage in the coming years will require continuous investment, a capacity to rapidly incorporate lessons from the field, and sustained support from Western partners. Every time Russian forces adapt their countermeasures, Ukrainian engineers must be ready to respond with a new generation of systems.

This innovation cycle is not free. It demands qualified human resources, materials subject to supply chains disrupted by war, and research and development investment in the context of a national budget under extreme pressure. Western partners who want Ukraine to maintain its technological advantage must integrate support for military innovation — not merely the supply of finished equipment — into their assistance.

International cooperation: sharing knowledge, multiplying impact

The Spanish FENIX programme, the American development of Hivemind, the Ruta missile from Destinus — all benefit directly from Ukrainian experience. This knowledge transfer is bidirectional: Ukraine receives improved systems in return. But it requires a more formal, faster cooperation structure, less hampered by standard procurement procedures that measure innovation cycles in years.

The medium-term objective is clear: make Ukraine a military innovation hub integrated into the NATO defense architecture. Not a peripheral appendage from which technologies are occasionally purchased, but a systemic partner whose real-time combat experience feeds the defense programmes of all allies. That is one of the most concrete forms that durable Western support for Kyiv could take.

Conclusion: the drone war has changed in nature

From simple object to complex ecosystem

The drone entered military consciousness as a simple weapon — cheap, expendable, remotely guided. The Hornet and the defensive system it generated show that era is over. Modern strike drones are complex systems integrating anti-jamming navigation, atypical frequency bands, satellite links, and potentially artificial intelligence. Their defense requires multi-layer architectures, continuous signature updates, and coordination between detection, jamming, and interception systems.

This evolution has direct implications for the security of Western democracies. If a relatively accessible drone like the Hornet forces an army the size of Russia's to build a five-layer defense, imagine the implications of a swarm of fifty AI-coordinated drones. Military doctrine, research and development investment, and personnel training must adapt to this reality — and they must adapt now, not after the next conflict.

Ukraine as a beacon

Zelensky and the Ukrainian forces transformed an invasion the world thought would be over in 72 hours into more than four years of fierce resistance and continuous military innovation. The Hornet is one symbol of that resistance. It illustrates that military superiority is not measured only in tonnage of steel or nuclear warheads — it is also measured in ingenuity, adaptability, and the will to keep innovating even under fire.

The Russian five-layer defensive system is the forced response of the aggressor to the creativity of its victim. That, in its own way, is a Ukrainian victory as real as any territorial gain. And it reminds every observer worldwide that in the war of the 21st century, technological initiative can be as decisive as numerical superiority.

By Maxime Marquette, columnist

Columnist's transparency note

Stated bias and methodological limits

I am pro-Ukraine and consider the Ukrainian resistance morally just and strategically important for Western security. This bias directs my analysis toward a positive appreciation of Ukrainian military innovations. I am not a weapons systems engineer nor an electronic warfare expert. My analysis of the Hornet's technical capabilities, the Yolka, and the Russian countermeasure systems is based on open primary sources, clearly identified.

Some technical information presented in this article — notably the precise Hornet frequencies, the exact Yolka capabilities, and the comparative effectiveness of the different defensive layers — comes from pro-Russian sources (notably statements by propagandist Aleksey Smirnov, as reported by Militarnyi). This information is presented with the usual caution: it may be incomplete or deliberately misleading in certain aspects, even if its fundamental accuracy appears confirmed by the very existence of the countermeasures described.

Method and source time window

This article is based on publications dated between June 26 and July 2, 2026. Primary sources include Militarnyi, Defence-UA, and Euromaidan Press. Electronic warfare analyses were cross-referenced with available data on documented Russian systems and Ukrainian technologies. No invented facts, no fabricated quotes. Uncertainties have been clearly flagged in the text.

Sources

Primary sources

Militarnyi — Hornet Drone Forces Russians to Build Multi-Layered Countermeasure System — July 1, 2026

Defence-UA — Will Another Drone Swarm Feature Technologies Tested in Ukraine? — June 2026

Euromaidan Press — In the world's most jammed battlefield, a Kyiv company keeps the signal alive — June 26, 2026

Secondary sources

Kyiv Independent — Ukraine War Latest — July 2026

Militarnyi — Defence and military technology coverage Ukraine — July 2026

Euromaidan Press — Russian Aggression Coverage — July 2026