The war in Ukraine has settled into a rhythm of brutal incremental advances that Western commentators have come to treat as permanent background noise. So reports of a significant Russian troop build-up threatening the city of Lyman — a key rail hub whose fall would open the road to seizing Ukraine’s entire Donbas — deserve rather more attention than the grinding casualty tallies typically attract. Lyman is not just another contested village. It is a logistical pivot point whose loss would represent a qualitative shift in Ukraine’s defensive geometry. The build-up, if confirmed at scale, suggests Moscow may believe the conditions are ripening for something more decisive than the attritional tempo of the past eighteen months.
The received wisdom
The standard Western analysis holds that Russia’s military has been so degraded by losses — over 300,000 casualties by most credible estimates — that any major offensive will ultimately exhaust itself against Ukrainian prepared defences. Ukraine, the argument goes, has demonstrated remarkable institutional resilience; its army has absorbed losses, retrained, and adapted to Western equipment faster than most predicted. Meanwhile, Russia’s manpower and ammunition problems, while partly offset by North Korean shells and Iranian drones, remain structural constraints that Moscow cannot simply spend its way out of. NATO’s continued supply of air-defence systems and long-range strike weapons has foreclosed the swift collapse scenario that Russian planners presumably hoped for in February 2022. On this reading, a Lyman offensive would be risky, costly, and ultimately unsustainable — another battle of attrition that favours Ukrainian interior lines.
A different read
The received wisdom contains real truth, but it also contains comfortable illusions that look less convincing the closer one examines the current operational picture. Three things should unsettle it.
First, the concentration of Russian forces around Lyman is not being assembled in a vacuum. It follows a sustained period in which Ukrainian air-defence has been degraded by attrition. Patriot interceptors are expensive and finite; North Korean ballistic missiles are cheap and numerous. Every interceptor expended on a drone swarm is an interceptor not available to protect a frontline command post. The arithmetic of this exchange rate, repeated over months, creates windows of relative vulnerability that an enemy with initiative can exploit.
Second, the political timeline matters as much as the military balance. Moscow has consistently tried to time its major moves to coincide with moments of maximum Western political distraction — the US election cycle, European coalition instability, NATO summit positioning. The current European political environment, in which Keir Starmer’s resignation in Britain leaves a major NATO contributor in leadership transition, and in which German coalition politics remain volatile, is precisely the kind of window Russian strategic planners look for. This is not paranoia; it is a pattern that goes back to Moscow’s 2014 Crimea annexation, timed for a Kyiv government in flux.
Third, and most importantly, the West has systematically underestimated Russian capacity for reconstitution throughout this war. Defence ministers said Russian ammunition would run out by late 2022. It did not. They said the Russian economy would collapse under sanctions. It did not, at least not in the timeframe that would matter militarily. Every revision of “Russia is running out” has been followed by evidence that Russia has found workarounds — Iranian drone factories, North Korean shells shipped via Vladivostok, Indian and Turkish re-export of dual-use components. The cumulative effect is that Western intelligence has a track record of underestimating Russian industrial mobilisation and should apply considerably more uncertainty to its current assessments.
None of this means Ukraine is on the verge of collapse, or that Russia will take Lyman, or that a Donbas offensive would succeed. Ukraine’s army is genuinely formidable. But there is a difference between recognising Ukrainian resilience and treating the current situation as essentially stable. It is not stable. The line from Lyman to the administrative boundary of Donetsk Oblast, and beyond it to Ukrainian-held Zaporizhzhia and the land bridge to Crimea, is exactly the strategic spine that Russia needs to consolidate to claim a durable victory on any terms it could sell domestically.
The harder question Western governments need to ask themselves is not “can Ukraine hold?” but “have we given Ukraine what it needs to hold at acceptable cost?” The answer, three years in, is at best equivocal. Restrictions on long-range strike — lifted, then reimposed, then partially relaxed again — have given Ukraine periodic tactical advantage while denying it the sustained operational capability to threaten Russian logistics in depth. The result is a war in which Ukraine can bleed Russia but cannot decisively defeat it, which is a recipe for indefinite attrition that will eventually exhaust democratic political will before it exhausts the Kremlin.
The Lyman build-up is a moment to take stock of whether that strategy is actually working, or whether the West has simply outsourced its decision-making to the hope that something will turn up.
What to watch
- Ukrainian counter-battery response: If Kyiv begins striking Russian assembly points at Lyman with Storm Shadow or ATACMS, it signals both capability and intent to contest the build-up actively.
- NATO member arms flows: Watch whether member states accelerate delivery of committed weapons or allow pledged equipment to slip. The gap between promise and delivery has been a persistent weakness.
- Russian logistics in Belgorod Oblast: Fuel and ammunition dumps in Belgorod are the operational tell for whether the Lyman concentration becomes an offensive, or is a feint designed to stretch Ukrainian reserves.
- Western political messaging: If NATO capitals respond with diplomatic language rather than accelerated materiel commitments, Moscow will rightly read it as an amber light.
— J