Russia built “underground city” in Kharkiv Oblast. Ukrainian Vampire bomber turned it into rubble

Russia built these fortifications to hide from drones.
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Ukrainian heavy Vampire drone. Photo: Ukrinform
Russia built “underground city” in Kharkiv Oblast. Ukrainian Vampire bomber turned it into rubble

On the South-Slobozyansk direction, Ukrainian drones have destroyed a Russian “underground city”. The operation was carried out by operators from the Hart brigade who destroyed a fortified strongpoint along with its network of bunkers and shelters, according to the State Border Guard Service.

The South-Slobozyansk front covers combat operations in Kharkiv Oblast. In the fall of 2025, the Russian Ministry of Defense publicly announced plans to advance toward Kupiansk and Vovchansk, aiming to create a “buffer zone” and open a path to Sloviansk and Kramatorsk.

Drone strikes leave no refuge

Recently, Russian forces have constructed a full-fledged fortified area in this sector of the Kharkiv front, an intricate network of bunkers and connecting trenches designed for prolonged defense.

Russian forces sought to conceal themselves underground from Ukrainian attacks and maintain control over access to their positions.

But, Ukraine's Vampire bomber drone destroyed bunker by bunker, shelter by shelter, forcing Russian units to retreat deeper into their lines.

The operation was led by a soldier with the callsign Somali, commander of the Rover unit, who rose from an infantry soldier to head one of the most effective bomber drone crews.

The South-Slobozyansk front covers combat operations in Kharkiv Oblast. In the fall of 2025, the Russian Ministry of Defense publicly announced plans to advance toward Kupiansk and Vovchansk, aiming to create a “buffer zone” and open a path to Sloviansk and Kramatorsk.

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