ANALYSIS: S-300 Missile Shortage — Russia's Air Defense Cracking Under Sanctions

ANALYSIS: S-300 Missile Shortage — Russia's Air Defense Cracking Under Sanctions

Introduction: The Russian Sky, Punctured One Missile at a Time

A deadly paradox for Moscow

There is something deeply ironic about the Russian air defense debacle of 2026. Russia nominally possesses one of the most sophisticated air defense systems in the world — S-300, S-400, S-500, Pantsir-S1, Tor-M2 — systems marketed for decades as the most advanced available on the global market. And yet, relatively inexpensive Ukrainian drones are reaching refineries in Moscow, striking military installations more than 1,500 kilometers from the border, and driving Kremlin defense officials to distraction. How did it come to this?

The answer fits in three words: sanctions, flawed doctrine, exhaustion. The S-300, the flagship of Soviet and then Russian air defense, is dying of its own shortage. Interceptor missiles are running scarce. Damaged radars go unreplaced. Electronic components subject to Western sanctions no longer reach the factories. Meanwhile, Ukraine produces its drones at an accelerating pace, testing each night the limits of a system degrading in real time. This article proposes an analysis of that progressive disintegration.

The June 2026 crisis: Ukrainian drones over Moscow

Mid-May 2026 marked a symbolic turning point: the Ukrainian drone attack on the Kapotnya refinery in Moscow demonstrated that even the Russian capital, protected by approximately 130 air defense positions within a 50-kilometer radius, was no longer inviolable. Russian authorities claimed to have shot down 194 drones during this attack — but the refinery burned anyway. Debris struck shopping centers and residential buildings. Kapotnya supplies approximately 40% of the Moscow market's fuel and processes around 230,000 barrels per day. A strategic symbol struck in the heart of the capital.

On June 26, 2026, the ISW reported that Ukrainian strikes had destroyed two S-300 launchers near Volnovakha, in occupied Donetsk. This reflects a systemic problem: not only are S-300 missiles exhausted, but the launchers themselves — expensive, difficult to replace and exposed — are being eliminated one by one by the Ukrainian campaign. The cumulative losses in air defense systems from 2022 to 2026 have created a qualitatively new situation.

The S-300 Arsenal: Assessment of an Exhausted System

From abundance to critical shortage

The S-300 has been the workhorse of Russian air defense since the 1980s. Designed during the Cold War to intercept high-altitude aircraft and cruise missiles, the system was massively deployed across Russian territory. But by 2025, estimates from Western sources placed the remaining stockpile at only approximately 400 launcher units — a considerable reduction from the inventories at the start of the conflict. This shortage accelerated through several mechanisms.

The first factor is Vladimir Putin's controversial decision to use S-300 missiles as offensive ballistic missiles against Ukraine. This diversion of their original purpose — air defense systems repurposed into long-range bombardment weapons — accelerated consumption of the stockpile with dubious military effectiveness. Analysts have characterized this decision as a major strategic error: by spending missiles designed for defense in offensive roles for which they are suboptimal, Russia depleted its defensive arsenals while obtaining mediocre results on the ground.

The production cycle: 7 to 8 months per missile

The S-300 shortage cannot be solved quickly. The production cycle of a single S-300 missile takes between 7 and 8 months according to Ukrainian analyses cited by LB.ua. The situation with the Pantsir is similar — the 57E6 missiles, which cost upward of $100,000 each, are being consumed far faster than the KBP design bureau in Tula can produce them. Production of a guidance and illumination radar for an S-400 system is constrained by microelectronics shortages, imported through gray-market channels in very limited quantities.

The most devastating sectoral sanction in this domain is the embargo on advanced semiconductors. Modern air defense systems require signal-processing chips, high-density memories and RF components that Russia cannot produce domestically at the required quality. Before 2022, these components came primarily from Western Europe, Japan and the United States. Since then, Russia has sought substitutes through China and other intermediaries — but with delivery delays extended to 18 to 24 months and performance that is often inferior.

Sanctions: How the West Cuts the Supply Chains

The 21st European sanctions package (June 2026)

The 21st sanctions package adopted by the European Union in June 2026 targeted new suppliers of the Russian defense industry, particularly in the energy, finance and defense technology sectors. The sanctions specifically target supply chains for weapons systems, including missiles and air defense systems. This package is part of a logical progression of restrictive measures accumulated since 2022, which have progressively strangled Russian industrial capabilities.

Ukraine also implemented its own sanctions in May 2026, targeting suppliers of factories producing ballistic missiles and air defense systems. Three key entities were sanctioned: the Moscow Machine-Building Plant Avangard — which produces the missiles for S-300 and S-400 systems — the Perm Powder Plant — which produces powder and rocket fuel — and the Votkinsk Plant — which produces Iskander ballistic missiles. By cutting component suppliers to these factories, Ukraine seeks to slow their production at the source.

The Voronezh factory: a symbolic target

On June 22, 2026, the ISW reported a particularly significant Ukrainian strike: high-precision air-to-ground missiles destroyed a defense industrial enterprise in Voronezh that produced components for Russian cruise missiles and air defense systems. This strike illustrates the Ukrainian strategy of targeting not only front-line launchers and radars, but also production chains deep in Russian territory. Each successful strike on a component factory slows the reconstitution of Russia's air defense arsenal for months.

Ukraine's deep-strike campaign against the Russian defense industry also includes strikes on the Kremniy EL plant in Bryansk — which produced electronics for Pantsir systems — and various logistical infrastructure supporting armaments production. Each successful strike does not merely destroy physical installations — it disrupts complex supply networks whose reconstitution takes years, not weeks.

The Impossible Geography of Russian Air Defense

17 million square kilometers to defend

Russia covers 17 million square kilometers — the largest territorial surface in the world. Defending this entire territory against drone swarms would have required hundreds of short-range air defense systems — estimates suggest between 300 and 400 units for the European portion alone (roughly 4 million km²). These systems simply do not exist. Soviet and then Russian doctrine had designed air defense to protect specific strategic points — cities, military bases, industrial installations — not to cover the entire territory.

This architecture of discontinuous engagement zones, effective against high-altitude aircraft and missiles, proves structurally ill-suited to low-altitude drone swarms. Radar coverage is "patchwork" — concentrated around Moscow, a few key installations and military bases, with enormous gaps of hundreds of kilometers between covered zones. According to analyses from LB.ua, only 10 to 15% of Russian territory benefits from continuous radar coverage. The rest is an open target.

Low-altitude flight: the poor man's weapon against the expensive system

Ukrainian drones exploit precisely these gaps by flying at low altitude — sometimes 50 meters above the treetops — which places them below the radar horizon of systems designed to detect high-altitude aircraft. The S-300 and S-400 systems, exceptional at intercepting targets flying at several kilometers altitude at supersonic speeds, find themselves confronting propeller-driven drones zigzagging between trees at 150–200 km/h. This is the fundamental technological mismatch of this war: an extremely expensive solution poorly adapted to a very cheap threat.

Pantsir systems, supposed to fill the short-range gap, suffer from a fatal intrinsic limitation in a swarm context: they can only engage four targets simultaneously. When a formation of 20, 30 or 100 drones approaches from different directions, the Pantsirs are mathematically overwhelmed. The armed drones pass through the confusion created by the Pantsir's simultaneous engagement of the first drone waves — often decoys specifically designed to exhaust the missiles.

The Cost Asymmetry: The Fatal Equation

A $55,000 drone against a $1 million missile

At the core of the progressive defeat of Russian air defense lies a merciless arithmetic. The Ukrainian drone An-196 Liutyi — Kyiv's primary long-range attack drone — costs approximately $200,000. Drones in the FP-1 family run around $55,000. A Russian interceptor missile — a Tor or a Pantsir, let alone an S-400 — costs several hundred thousand to several million dollars. When a defender spends a million-dollar missile to shoot down a $55,000 drone, the defender loses economically — even when winning tactically.

Ukraine is producing long-range drones at an accelerating pace: the Ukrainian Ministry of Defence stated that production of medium-range strike drones increased by approximately 312% in the first four months of 2026 compared to all of 2025. The stated objective is to reach a production rate of up to 300 long-range drones per day. Faced with this industrial build-up, Russia cannot maintain the pace of replacing its interceptor missiles — the cost of defense is structurally higher than the cost of attack.

The progressive disintegration of the shield

Between January and May 2026, Ukraine's Forces of Unmanned Systems (SBS) struck 174 Russian air defense assets — including surface-to-air missile systems, radar stations and electronic warfare equipment. Each destruction weakens the network as a whole. The loss of a radar does not only create a blind spot in the space covered by that radar — it degrades the air picture across the entire sector, making coordination of neighboring systems more difficult and less precise.

Air defense systems have been removed from Russia's Far East — more than 30% according to some analyses — to reinforce the protection of Moscow and strategic oil installations. This redistribution creates new vulnerabilities in previously covered regions. Kaliningrad, the Arctic and parts of the front itself are left exposed to cover priorities deemed more urgent. This is a game of musical chairs that Russia cannot win: there are too many zones to protect and too few systems available.

Component Sanctions: A Shadow War

Microelectronics: Russia's Achilles' heel

Russia's dependence on imported electronic components is one of the least visible but most significant vulnerabilities of its defense industry. Before 2022, estimates suggest that more than 70% of critical electronic components used in Russian weapons systems came from Western or Asian sources subject to Western export controls. Sanctions have cut these supplies drastically.

Russia has sought alternatives in China, Iran and through gray-market circuits involving third countries in Turkey, Kazakhstan and the United Arab Emirates. These workarounds allow access to some components, but with considerable delays and at substantially higher prices. More problematically, the quality of Chinese substitutes in certain semiconductor ranges remains inferior to the Western components Russia was accustomed to, with direct impacts on weapons system performance. The 21st, 22nd and earlier sanctions packages have progressively closed the most obvious circumvention channels.

Iran and North Korea as suppliers: obvious limits

Russia has sought support from its authoritarian-axis partners to compensate for its air defense gaps. Iran, itself under severe sanctions, has attempted to supply radar systems — but its own inherited S-300 systems were destroyed in Israeli strikes, limiting what it can offer. North Korea has provided millions of artillery shells and troops — but not sophisticated radar systems or anti-aircraft missiles that North Korean technological levels do not allow it to produce. These partnerships fill some quantitative gaps but do not resolve the qualitative problems of Russian air defense.

China, which has the technological capabilities to supply Russia with air defense systems, has maintained a calculated position of abstention on weapons deliveries to Russia — while providing dual-use components. This calculated restraint preserves Chinese economic relations with the West and avoids secondary sanctions, but it leaves Russia without the air defense system reinforcements it would need to stabilize its network. The Sino-Russian partnership, despite its rhetorical reinforcement, has concrete limits that Moscow is beginning to feel painfully.

Ukrainian Tactics: Exploiting Network Structure

Intelligence as the first missile

The growing success of Ukrainian drones against Russian air defense is not solely a matter of their numbers or their cost — it also comes down to intelligence. Ukrainian targeting teams map the known positions of Pantsir and Tor systems and identify corridors degraded by electronic warfare. They then program flight trajectories that slip through the gaps — following terrain to stay below the radar horizon of systems, exploiting blind spots created by neutralized radar positions.

Ukraine's secret drone team, described in several analyses by American media in June 2026, operates with growing sophistication. First-wave drones identify the positions of air defense systems. Second-wave drones map the least-defended approach trajectories. Third-wave armed drones follow these identified corridors to reach their targets. This sequential reconnaissance-attack tactic represents a doctrinal evolution that forces Russian defense into an exhausting permanent reaction.

Decoys: the strategy of false pretenses

Ukraine systematically integrates decoy drones into its attack formations — devices designed to mimic the radar signature of missiles in order to force the activation and consumption of Russian interceptor missiles. When dozens of contacts converge simultaneously on an objective from multiple directions, a radar post and its missile loader on standby are overwhelmed. The actual armed drones pass through the confusion created by the simultaneous engagement of decoys.

This strategy of exhaustion through decoys is deliberately economical for Ukraine and ruinous for Russia. A Ukrainian decoy can cost a few thousand dollars. It forces the use of an interceptor missile worth $100,000 to several million dollars. At scale and over time, this asymmetry irreversibly erodes the Russian stockpile. The Wall Street Journal, cited by RBC-Ukraine on June 27, 2026, reported that massive Ukrainian drone attacks had already neutralized approximately 20% of Russia's oil refining capacity — partly because the defense was overwhelmed by this tactic.

Inability to Protect Oil Infrastructure

Refineries as priority targets

Since March 2026, Ukraine has intensified its campaign of strikes against Russian refineries and oil terminals, with growing precision and persistence. The ISW reported on June 22, 2026 that the campaign against oil infrastructure had led to gasoline shortages throughout occupied Ukraine and many Russian regions. Russia, which had imported gasoline from Asia in 2026 after not having done so in 2025, signaled that shortages will be worse this year than the previous one.

The ISW documented on June 26, 2026 that 28 strikes against oil infrastructure had been carried out in June, adding to 145 intermediate strikes in May and 210 strikes in the preceding month. This systematic campaign has a dual objective: reduce Russian fuel production (depriving the armed forces and the economy), and demonstrate the air defense's inability to protect vital installations. Each burning refinery is an advertisement for the failure of Russia's air defense shield.

Russia restricts its oil exports

Faced with these repeated strikes, Russia has taken emergency measures on its fuel exports — restrictions that harm its foreign currency revenues, already battered by the oil price cap maintained at $44.10 per barrel under the 21st sanctions package. The Urals price was $44.3 per barrel in June 2026 — versus more than $109 in early April, before the oil price collapse. This drop in oil revenues, combined with the inability to protect refineries against drones, creates a vicious cycle for the Russian war economy.

Vladimir Putin responded by signing a decree extending the ban on the oil price cap through end of 2027 — a symbolic measure that does not change the reality of prices. Refineries that burn cannot be replaced by presidential decrees. Refining capacity lost to Ukrainian strikes does not reconstitute quickly, and the air defense that should protect these installations continues to degrade. This convergence of vulnerabilities structurally weakens the Russian war machine.

The Russian Response: Defense in Permanent Reorganization

Concentrate to protect the essentials

Faced with the exhaustion of its air defense stockpiles and the multiplication of targets to protect, Russia has adopted a strategy of defensive concentration. Available systems are redistributed from peripheral regions toward zones considered vital: Moscow, major industrial cities, oil export ports, strategic air bases. This redistribution de facto abandons large territories to increased vulnerability — a difficult choice that illustrates the overall inadequacy of available means.

Russian air defense systems built specifically to protect Moscow illustrate this concentration effort: 130 air defense positions within a 50 km radius of the capital, including approximately 100 Pantsir-S1 systems and around twenty S-400 batteries. Even this extraordinary concentration did not prevent Ukrainian drones from reaching the Kapotnya refinery during the May 17, 2026 attack. Density, without depth and systemic coherence, is not enough.

Moscow's anti-drone towers: a desperate innovation

Between May and September 2025, Russia built approximately 43 specialized anti-drone towers around Moscow — structures 30 to 50 meters high, costing hundreds of millions of dollars each, designed to elevate Pantsir systems above urban terrain obstacles. This innovation, which reflects a certain tactical creativity, also illustrates the fundamental problem: neutralizing a single such installation sometimes requires 50 to 70 kg of explosives delivered with precision to paralyze it for six months. A successful strike yields a spectacular cost-benefit ratio for the attacker.

These towers are also revealing of the system's limits: an air defense architecture that depends on known fixed structures is an architecture that can be mapped, simulated and circumvented. Ukraine now possesses a detailed catalogue of Moscow's air defense positions, built over years of OSINT observations and intelligence. It can design flight trajectories that thread through engagement zones — as demonstrated by the successful strikes on Moscow infrastructure in 2026.

The S-500: The Savior That Has Not Arrived

A system promised but rare

Russia has presented the S-500 Prometheus as the successor to the S-400 — a system capable of intercepting hypersonic missiles, stealthy drones and improved low-altitude threats. But in June 2026, serial production of the S-500 remains extremely limited. Shortages of electronic components, production difficulties and the budgetary priorities of the war make the S-500 an elite system deployed in very small numbers — essentially around Moscow — rather than a widespread replacement for the aging S-300.

Even S-400 systems, though modern, face maintenance difficulties due to spare parts shortages. Analysts have documented cases where damaged S-400 guidance radars remained out of service for several months due to the inability to obtain necessary components. The technological sophistication of the S-500 makes it even more dependent on advanced electronic components — precisely those that sanctions make most difficult to obtain. Russia's "supreme" air defense system is trapped by the same shortage as the S-300 it was meant to surpass.

The Oreshnik: the inadequate response

A concerning revelation among information gathered by the ISW in June 2026: Russia apparently has only one operational Oreshnik IRBM remaining in its arsenal, although it is seeking to produce more. The Oreshnik, an intermediate-range ballistic missile presented by Putin as a revolutionary hypersonic weapon, is also a victim of production constraints. It is not just defense that is running short: Russia's entire missile arsenal suffers from the same structural production and sanctions constraints.

This reality contrasts with official Russian declarations that continue to present the national military arsenal as formidable and abundant. Propaganda and operational reality are diverging increasingly — a divergence that Ukrainian military planners and Western analysts are aware of, but that Russian public opinion does not hear from Kremlin-controlled media.

Implications for Ukrainian Strategy

Taking advantage of the window of vulnerability

The degradation of Russian air defense creates a strategic window of opportunity for Ukraine. By accelerating its strike tempo against refineries, weapons factories and military infrastructure, Kyiv aims to maximize damage while Russian defenses are at their lowest. This is the application of the classic military principle of striking the adversary when weakened. The risk is that Russia finds new supplies or develops unexpected countermeasures — a real risk that justifies Ukrainian urgency.

The intensification to 660 drones reported by analyses for the week of June 27, 2026 illustrates this acceleration. Ukraine is not slowing down — it is pressing the accelerator precisely because it sees that Russian defenses are stretched to their limit. The 40-day campaign approved by Zelensky on June 25, 2026 aims to maintain this maximum pressure and force Russia toward diplomatic concessions — or to accelerate the collapse of its military potential.

The limits of deep strike

Ukraine's deep-strike strategy has limits that its architects acknowledge. Strikes on refineries create fuel shortages, but they do not have direct short-term impact on the combat capability of Russian front-line forces — Russian armies have stockpiles and alternatives. Strikes on weapons factories slow production, but existing inventories allow operations to continue for months. The effect is cumulative and long-term, not immediate.

Moreover, Russia is progressively adapting its protection methods, however imperfectly. It is moving aircraft to dispersed hangars. It is reorganizing its logistical convoys. It is seeking alternative electronic component supplies. These adaptations do not compensate for losses, but they slow the degradation. The air defense system war is not a decisive Russian defeat — it is a progressive attrition whose final outcome depends on political decisions in Moscow and the endurance of both sides.

Lessons for Western Defence

Rethinking air defense architecture

The Russian air defense debacle of 2026 provides crucial lessons for Western defence planners. The first: an air defense optimized for the Cold War — expensive systems, mobile but few in number — is ill-suited to the drone threats of the twenty-first century. The response lies in hybrid approaches combining high-effectiveness systems against ballistic missiles, lower-cost systems against drones (lasers, microwave guns, interception by killer drones), and distributed defense in depth rather than concentrated at points.

The second lesson: supply chains for critical electronic components are a national security issue. Russia's dependence on Western semiconductors was a force multiplier for sanctions and a vulnerability multiplier for Russian defense. Western nations must examine their own dependencies — particularly on China — in the production of critical components for their weapons systems. The war in Ukraine is a brutal reminder that the supply chain is an integral part of defence capability.

The cost of technological deterrence

NATO, which closely observes the Russian air defense debacle, is drawing direct operational lessons for its own systems. The American Patriot, the German Iris-T and the Franco-Italian SAMP/T have demonstrated their effectiveness against Russian missiles in Ukraine. But their cost — and the cost of their interceptor missiles — raises questions about their scalability against drone swarms. Current investments in directed-energy weapon systems (lasers, microwaves) aim precisely to solve the economic equation of drone defense: a near-zero marginal cost per interception rather than several hundred thousand dollars per missile.

The Russian air defense system debacle is, ultimately, an invitation to the Alliance to accelerate these investments. This is not an isolated Russian problem — it is a systemic challenge for all air defense architectures inherited from the Cold War. Those who draw lessons from 2026 and invest in the right technologies will emerge better prepared for the world of tomorrow.

The S-300 Shortage as a Geopolitical Signal

What it reveals about the true state of Russia

Beyond the military dimension, the S-300 missile shortage reveals something fundamental about the state of Russia in 2026: it is a state whose nominal military power was vastly overestimated, and whose real capabilities are constrained by deep industrial, economic and technological limits. The impressive facade of military parades on Red Square conceals a reality of fragile supply chains, industries dependent on foreign components and shallower stockpiles than announced.

This reality does not mean that Russia will collapse militarily tomorrow. It still has thousands of tanks, hundreds of rocket systems, millions of shells and hundreds of thousands of soldiers. But the constraints are accumulating. Shortages of missiles, electronic components and fuel are increasingly felt in long-term operational capability. The war of attrition Putin chose is slowly turning against him — not fast enough for the Ukrainians who suffer every day, but inexorably for long-term planners.

Sanctions work, even slowly

The S-300 shortage is the most tangible proof that sanctions work. Not spectacularly, not in the way optimists hoped in 2022, but slowly, cumulatively, inexorably. Electronic component supply chains are disrupted. Missile production is slowed. The capacity to reconstitute depleted stockpiles is limited. And meanwhile, Ukraine produces more and more drones, faster and faster, at lower and lower cost. The trajectory of technological power balances is, with time, favorable to Ukraine and its allies.

Russia seeks to fill its deficits with imperfect substitutes and constrained partnerships. But in the high-technology warfare that the twenty-first century imposes, imperfect substitutes do not win. The Russian sky is being punctured, one missile at a time. And each hole in that sky is a victory — modest but real — for Ukraine, for its allies, and for the international order that Putin's Russia is attempting to demolish.

Russian Short-Term Alternatives: An Equation With No Good Solution

The S-400, Pantsir and substitute systems

Faced with the progressive exhaustion of S-300 batteries, Russia has sought to fill its air defense gaps with available systems. The S-400 Triumf — a next-generation system introduced in 2007 as the S-300's successor — is the logical choice. But the S-400 is itself limited in number: Russia had delivered several batteries to Turkey, China and India before the war. Batteries available for territorial defense are under tension between protecting Moscow, major cities, strategic military installations and the Ukrainian front. They cannot be everywhere at once.

The Pantsir-S1 — short-range defense system intended to protect S-300 and S-400 batteries against low-altitude drones and cruise missiles — has shown its limits in Ukraine. Videos of destroyed Pantsir-S1s, sometimes by the very drones they were supposed to intercept, circulated widely. Tor-M2 systems provide medium-range coverage, but faced with the saturation of 660 Ukrainian drones documented by WION on June 27, 2026, interception capabilities are quickly overwhelmed. Russia's air defense is in an arms race that it is progressively losing in both qualitative and quantitative terms.

North Korea and Iran as suppliers: obvious limits

Russia has explored the possibility of obtaining air defense system support from its authoritarian-axis partners. North Korea has provided artillery munitions and ballistic missiles — and according to FDD analyses from June 2026, technology transfers in the opposite direction (from Moscow to Pyongyang). But North Korea does not produce sophisticated air defense systems comparable to the S-300. Iran has the Bavar-373, presented as its own long-range defense system — but its reliability is uncertain, its production limited, and tensions around the nuclear deal complicate any major transfer of weapons systems toward Moscow.

China, with its HQ-9 systems, is the only actor that could supply Russia with sophisticated air defense systems in quantity. But Beijing has so far avoided delivering lethal weapons to Russia for the war in Ukraine — a red line maintained so as not to trigger massive Western sanctions on its own industries. Supplying air defense systems would risk crossing this line. Russia is thus isolated in its dependence on its own degraded domestic production, without a credible external source to compensate for its losses.

Conclusion: Russian Air Defense, Mirror of a Regime at Breaking Point

A system disintegrating slowly

The S-300 missile shortage and the progressive degradation of Russian air defense are the visible symptom of a deeper problem: the growing mismatch between Vladimir Putin's military ambitions and Russia's real industrial, economic and technological capabilities. Sanctions are biting. Production is slowing. Stockpiles are being depleted. And Ukrainian drones keep arriving — more numerous, more autonomous, more precise, more difficult to intercept.

One must not mistake the meaning of this evolution. This is not an immediate victory for Ukraine. Russia remains a dangerous military power, capable of inflicting considerable suffering. But the trajectory is established: Russian air defense is degrading, production capacity is shrinking, and Ukraine is demonstrating that a determined nation can, with innovation and courage, bend the defense systems of a sanctioned great power. It is a lesson that history will remember.

The sky is the message

Every Ukrainian drone that passes through the meshes of the Russian air defense network to strike a refinery, a weapons factory or a military base is not merely a tactical strike. It is a political message: Russia cannot protect its territory. It cannot guarantee the security of its infrastructure. It cannot keep its defense promises to its people. The open sky above Russia's burning refineries is the mirror of a regime exhausted by a war it should never have started.

By Maxime Marquette, columnist

Columnist's transparency note

My biases and my method

I support Ukraine and its resistance to Russian aggression. I am convinced that Western sanctions are a legitimate and necessary tool of pressure on Putin's regime. These positions inform my analysis but do not distort its facts — all figures and data cited are drawn from verified sources, including the ISW, specialist defence publications and analyses from recognized experts.

I am not a weapons systems engineer or a technical defence analyst. My analysis of the technical capabilities of the S-300 and other systems is based on published specialist sources, including analyses from LB.ua, Militarnyi.com, MiGFlug and the ISW's daily reports. On some technical details, my knowledge is limited and I note this.

What I do not know

I do not know the precise state of Russian stockpiles of S-300, S-400 and Pantsir missiles — this information is classified and available estimates carry significant margins of error. I do not know whether and when Russian production could recover through sanctions circumventions not yet documented. I do not know the exact capabilities of the most recent Ukrainian drones or their real attrition rates. These uncertainties are inherent to the analysis of an ongoing conflict.

Sources

Primary sources

ISW — Russian Offensive Campaign Assessment, June 22, 2026 — June 22, 2026

ISW — Russian Offensive Campaign Assessment, June 26, 2026 — June 26, 2026

RBC-Ukraine — Ukraine sanctions suppliers of Russia's Iskander and S-400 missile systems — May 13, 2026

United24 Media — Ukraine's 2026 Drone Campaign Hit 174 Russian Air Defense Systems — June 5, 2026

Secondary sources

LB.ua — A patched-up quilt: why Russia's skies are no longer safe — April 27, 2026

Militarnyi — Ukrainian Attack on Moscow: Analysis of Air Defense Rings Breakthrough — May 17, 2026

RBC-Ukraine — Ukrainian drones penetrate Russian air defenses more effectively, WSJ reports — June 27, 2026

MiGFlug — Why Russia Can't Stop Ukraine's Deep-Strike Drones — June 23, 2026

Militarnyi — Claims of Nearly 9,000 Drones Shot Down in May Failed to Save Oil — June 1, 2026