The commander of an interceptor battalion in Ukraine’s 3rd Army Corps said his unit destroyed several thousand Russian aerial targets during Operation Vivaldi, ArmyInform, the Defense Ministry’s news agency, reported on 21 October.

Operation Vivaldi is a Ukrainian counteroffensive north of Lyman in Donetsk Oblast, where the 3rd Army Corps has reported liberating settlements. In its third phase, Ukrainian forces reclaimed five settlements and expanded their gains to 176 square kilometers. Strikes on Russian logistics and electronic warfare likely neutralized Russia’s drone defenses before Ukraine sent in armor, the Institute for the Study of War assessed.

The commander, who uses the callsign “Betsyk,” leads the interceptor battalion of the 1030th Anti-Aircraft Missile-Artillery Regiment “Aquila,” part of the 3rd Army Corps. He said Russian forces deployed large numbers of reconnaissance drones to locate Ukrainian positions after the corps began advancing.

Betsyk named Zala, Orlan, Supercam, Merlin, and Knyaz Veshchiy Oleg among the reconnaissance drones used by Russian forces.

Russia also brought in reinforcements and units operating strike drones, including first-person-view (FPV) quadcopters, Molniya fixed-wing FPV drones, and Lancet crews, he said. At one stage, Russian forces deployed crews from their Rubicon drone unit to disrupt the advance, but the move did not change the situation.

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Betsyk said his battalion’s work deprived Russian forces of the ability to strike Ukrainian troops and track their movements.

Jet-powered Shaheds: speed is the main challenge

The regiment also works against Russian strike drones heading for targets behind the front line. Betsyk said interceptor crews had destroyed some jet-powered drones, but not in significant numbers.

The main difficulty is speed, he said. Interceptor drones need to reach 500–600 km/h to intercept Russian jet-powered attack drones, according to Betsyk.

For now, the regiment mainly uses conventional air-defense systems against these targets: self-propelled anti-aircraft systems, surface-to-air missile systems, and portable surface-to-air missile systems. Betsyk said these systems were historically designed to engage jet-powered targets.

He compared the current challenge with the early use of piston-powered Shaheds. Those drones initially posed a serious threat but later became easier for Ukrainian air defenses to counter. Russia has largely stopped using piston-powered Shaheds on most fronts since summer, he said, but continues to use piston-powered Gerbera drones, which are relatively cheap and can partly exhaust Ukrainian air defenses. The main drones Russian forces use now are jet-powered Shaheds, he said.

Betsyk expects Russian forces to adapt if Ukraine fields effective interceptors against jet-powered drones. They will seek ways to evade the interceptors, increase speed, improve navigation, and change their tactics, he said. However, he added that the battalion had not observed a major evolution so far and did not expect the drones’ speed to double.

What the corps says Vivaldi achieved

Separately, 3rd Army Corps commander Andrii Biletskyi said Ukrainian forces retook 277 square kilometers and 16 settlements during Operation Vivaldi, Ukrainska Pravda reported. Biletskyi also said Russian losses exceeded 8,000 personnel, according to ArmyInform. These figures are Ukrainian claims and have not been independently verified.

Drones struck the seized Ukrtelecom building in occupied Luhansk overnight on 21 October, hitting the mobile operator Russia’s occupation authorities run there under the name “Lugacom,” Russian Telegram channel Astra and Ukrainian monitoring channels reported. The strike came a night after drones hit “Ugletelecom,” the occupation’s telecom operator in Donetsk, which reportedly runs on equipment seized from Ukrainian companies. Footage posted by Ukrainian monitors shows heavy fire damage inside the Luhansk building. Ukraine has not officially commented.

Ukraine has spent months hitting the supply lines, depots, and infrastructure that sustain Russia’s occupation of southern and eastern Ukraine, with mid-range drones striking trucks, trains, and communications towers well behind the front. This spring the commander of Ukraine’s Unmanned Systems Forces, Robert “Madyar” Brovdi, promised Russian troops in occupied territory a “stone age.” This time the targets were the networks the occupation runs on.

A burned-out Ukrtelecom building in Luhansk

Residents reported explosions in Luhansk overnight, and the former Ukrtelecom building was attacked by a drone, Astra reported, citing its readers. The occupation runs its mobile operator, “Lugacom,” from the seized building, and built its network on equipment taken from Ukraine’s Kyivstar, according to dev.ua. The building also houses an occupation-run telecom services center. Luhansk is situated in the easternmost Ukrainian region and has been occupied since 2014.

Ukrainian monitoring channel Exilenova+ said Ukraine’s Defense Forces struck the building, which also hosts an information technology and technical support center. A video it posted shows extensive burning inside. Petro Andriushchenko, head of the Center for the Study of Occupation, said the drones hit a data center in the building.

Occupation officials had not commented, according to NV. In September, drones hit a hardware store in Luhansk, sparking a large fire. Earlier this month, fires broke out at a Russian supply base in Khrustalnyi, also in occupied Luhansk Oblast.

Donetsk’s occupation telecom operator hit the night before

The night before, drones struck “Ugletelecom,” one of the key communications operators in occupied Donetsk Oblast, Exilenova+ reported. It operates from an office building at 60 Postysheva Street, where Ukraine’s state holding company Donbasugleobespechenie was registered before the occupation, according to RBC-Ukraine. Astra found about 27 organizations registered at the address, including internet provider Fticom, and damage on four floors.

Ugletelecom runs on equipment seized from Ukrainian companies, Donetsk-focused outlet Kochegarka reported, citing local sources. The occupation also moved local businesses that had used Ukrtelecom over to it, according to dev.ua. Residents had reported powerful explosions in the city.

Power cuts across the occupied territories

In occupied Donetsk Oblast, drones attacked the 330 kV Pivdenna substation in Chystiakove, and locals reported outages, Telegram channel DroneBomber said, calling the report preliminary. Occupied Donetsk went into a blackout on the evening of 20 October after strikes on its power supply, Andriushchenko said. He also reported air defense activity and hits in the Mariupol area.

In occupied Crimea, residents of Krasnoperekopsk reported explosions and hits near the railway station, then partial power cuts, monitoring channel Crimean Wind said. In occupied Melitopol, drones tried to attack the city’s power facilities at around 03:30 but missed, Russian senator Dmitry Rogozin claimed.

French mapper Clément Molin counted 770 confirmed Ukrainian drone strikes on Russian trucks in the logistics zone 10 km behind the front line in September, up from 630 in August.