President Volodymyr Zelensky issued a stark warning on Friday that Russian forces are preparing a fresh large-scale assault on Ukraine, citing intelligence reports of an imminent strike. The alert, delivered in a recorded evening address, comes as Moscow has openly declared its intention to conduct a “series of organised strikes” on Kyiv, and follows a weekend barrage that killed at least two people and wounded dozens. The Russian military has already deployed its new Oreshnik medium-range ballistic missile against the capital, signalling an escalation in its campaign to degrade Ukrainian infrastructure and morale.

Viewed from Washington, the timing of the warning underscores the critical dependency of Ukraine’s air defences on American political will. Zelensky revealed that he had sent a direct letter to President Donald Trump, urgently requesting more air defence systems to counter Russian ballistic missiles. While Kyiv has been accumulating funds from European allies to purchase missiles, the Ukrainian leader acknowledged that “sufficient supplies depend on America.” This blunt assessment reflects a broader anxiety among Western capitals: that the flow of US military aid could become hostage to domestic political calculations in an election year.

Moscow has justified its intensified aerial campaign as retaliation for a drone attack on a student dormitory in the Russian-occupied Luhansk region, which killed 21 people. Kyiv has denied involvement, but the Kremlin has used the incident to order foreign nationals and diplomats to leave the Ukrainian capital, a move that analysts in London view as a precursor to a sustained bombing campaign. The tit-for-tat dynamic further complicates any diplomatic off-ramp, even as Zelensky sought to broaden his outreach by discussing the threat with Austria’s chancellor.

The strategic picture is increasingly shaped by a contest of endurance. Russian tactics, as Zelensky noted, indicate that Moscow still seeks a “purely military solution,” a posture that leaves little room for negotiated settlements. Meanwhile, Ukraine’s operational services and air forces remain on constant alert, but the strain is evident. The coming days will test not only the physical resilience of Ukraine’s cities but also the cohesion of the Western coalition, where European financial contributions cannot substitute for the advanced interceptors that only the United States can provide at scale. The spectre of another devastating barrage thus places Kyiv in a precarious waiting game, one whose outcome may be decided as much in the corridors of Washington as on the battlefield.