Russia loses 67 sq km of Ukrainian territory in April -- second straight month of net losses after 27 months of gains

Russia Matters, a project at Harvard Kennedy School's Belfer Center for Science and International Affairs, drew on Institute for the Study of War data to find that Russian forces lost 67 square kilometres of Ukrainian territory in the month ending 28 April -- the second consecutive month of net losses after 27 months of gains. Russian forces gave up 31 square kilometres in March, after gaining 119 square kilometres in February. The figures are net: per Ukrainian mapper DeepState, Russia advanced in 10 settlements during the same April window (some in the southeast, others on the strategically important Pokrovsk-Kramatorsk and Chasiv Yar-Kramatorsk axes), while retreating from others.

Ukraine's drone campaign appears to be the principal driver of the reversal. Independent mapper Clement Molin counted 440 successful Ukrainian drone strikes in April: 330 mid-range strikes inside occupied Ukrainian territory and 110 long-range strikes deep inside Russia. Mid-range strikes against the Russian logistical zone -- supply trucks, regimental headquarters, drone bases up to roughly 200 km behind the gray zone -- have an immediate operational impact; long-range strikes target Russian factories and refineries with longer-term economic effects.

The most consequential ground-truth claim came from Tochnyi.info, which documented at least 492 Ukrainian strikes on Russian air-defence systems between June and early March, including radars, surface-to-air missile batteries and mobile air-defence platforms along the 1,200-km gray zone. The investigation found that Ukraine is destroying these assets faster than Russia can replace them, and that the cumulative effect is "collapsing the layered defensive architecture that the Russian integrated air-defence doctrine depends upon to function" -- creating space for the deeper strikes that have hit Russian factories and refineries this spring. "We are methodically destroying the key elements of the enemy's military infrastructure," said Yevhen Khmara, head of Ukraine's state security service.

Retired Australian Major General Mick Ryan called the trend potentially "the worst year yet for Putin": "With large-scale deep strikes on his territory, and a ground campaign not generating tempo, 2026 may be the worst year yet for Putin." Former British soldier Shaun Pinner, who has fought for Ukraine, identified Russia's costly 18-month effort to capture Pokrovsk -- finally concluded last December -- as the turning point: "Pokrovsk is where Putin smashed his teeth." Analysts caveat that Russia retains a manpower and firepower advantage and may still mount renewed offensives in the short and medium term, but the drone campaign has begun to tilt the battlefield back in Ukraine's favour.