Ukraine launched its most extensive drone attack on the Russian capital in more than four years of war early on Thursday, sending waves of unmanned aircraft against the Moscow Oil Refinery in the southeastern Kapotnya district. The strike, which Russian officials said involved hundreds of drones across multiple regions, set large sections of the facility ablaze, sent thick columns of black smoke towering over the city and forced the temporary suspension of flights at Sheremetyevo, Vnukovo, Domodedovo and Zhukovsky airports. Moscow’s mayor, Sergei Sobyanin, said air defence units destroyed 194 drones heading for the city alone, yet several broke through to hit the refinery, which supplies roughly a third of the capital’s petrol and fuel. Unverified videos geolocated by news agencies showed a massive explosion that blew the lid off a fuel storage tank, while high-rise residential buildings in nearby Zhukovsky also caught fire, prompting evacuations.

Viewed from Kyiv, the operation was both a military and a psychological riposte. President Volodymyr Zelenskyy described the strike as a “fully justified response to Russian strikes on our cities and communities” and warned that “if Ukraine burns, your Moscow will burn.” He noted that the drones had successfully navigated three layers of air defence systems deployed around the capital, a pointed demonstration of Ukraine’s growing long-range strike capability. The attack came hours after Zelenskyy held what he called an “important coordination call” with US President Donald Trump and French President Emmanuel Macron following the G7 summit, and as Vladimir Putin hosted Southeast Asian leaders at a Russia-ASEAN summit in Kazan, some 700 kilometres east of the flames engulfing his capital’s refinery.

From Moscow, the defence ministry claimed a total of 555 Ukrainian drones were intercepted overnight across the country, a figure that underscores the scale of the assault. Yet the repeated penetration of the capital’s airspace—the refinery was also struck on Tuesday, after which it reportedly halted operations—has exposed persistent vulnerabilities in Russia’s homeland defences. Analysts in European capitals note that the targeting of energy infrastructure far from the front lines is a deliberate campaign to erode the economic underpinnings of the Kremlin’s war effort, while simultaneously bringing the conflict’s visceral reality to Muscovites who have largely been insulated from its worst effects.

The attack marks a sharp escalation in Ukraine’s deep-strike strategy at a moment of renewed diplomatic manoeuvring. Trump’s signals of re-engagement have raised expectations in London and Brussels that Washington may adopt a tougher posture to push Russia toward negotiations. Yet the sight of Moscow’s skyline darkened by burning fuel tanks complicates any near-term off-ramp, reinforcing instead a dynamic in which both sides seek to inflict maximum pain ahead of any potential talks. With Kyiv demonstrating an ability to hit high-value targets even under dense air defence umbrellas, and Moscow retaliating with missile barrages on Ukrainian cities, the conflict’s trajectory points toward further intensification rather than de-escalation.