Drones have pushed armored vehicles off the roads to Ukraine's front line, a Ukrainian brigade commander told RBC-Ukraine. Denys Perch, who commands the 107th Territorial Defense Brigade, says the drone-saturated belt has grown so deep that pickups no longer reach forward positions. The one enemy weapon his jammers can't touch is the fiber-optic drone.

The war has become a contest over who can pull people off the battlefield fastest, as cheap drones make any human movement near the front a target. Ukraine keeps out-inventing Russia at the front, but Russia copies each advance and floods the line with it at state scale.

When armor becomes the target

Until recently, armored vehicles still drove supplies to logistics hubs near the front. That is now almost impossible. Perch says that when a large, armored machine appears, Russian forces treat it as a prize target and swarm it with dozens of drones and munitions. Perch would sooner park his armor than seat soldiers inside it.

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A kill zone that keeps widening

On the busiest sectors, Perch says, the kill zone—the drone-ruled strip around the contact line—now runs 15 to 20 kilometers deep. Some positions take three days to reach on foot. Where troops once drove most of the way and walked the last stretch, they now walk it all.

Robots take the drive

Under Perch, the brigade climbed, by his account, from around 22nd to third among Ukraine's Territorial Defense forces on the military's strike-results leaderboard, the home-guard units now fighting on the front. Ground robots—unmanned ground vehicles (UGVs)—do the work that armor cannot. They haul supplies and evacuate the wounded, though the robot often can't be brought back. His brigade runs over 1,500 logistics missions a month by heavy bomber drones alone, and still more by first-person-view (FPV) drones and robots. Russia hunts those bombers, he says, with interceptors that scramble the moment they hear one take off, so his crews mix high and low flight to slip past. Perch expects robots to move from supply runs into combat, hitting Russian troops in their rear.

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The drone his jammers can't touch

Both armies now field fiber-optic drones—machines guided by a hair-thin glass thread instead of radio. No signal means nothing to jam. Ukraine learned to block radio and digital drones, cutting their controls and video, Perch said. The glass-fiber ones his electronic warfare cannot reach, because there is no radio link to attack. His brigade still has no counter to them, Perch said, and he wants a technical fix that stops them.

Russia wants its tanks moving again after two years of Ukrainian drones freezing its armored assaults, the Institute for the Study of War (ISW) reported. Its main bet is a tank-mounted system that fires interceptors at incoming drones. The system worked on at least one tank, but Russia lost it anyway.

Since 2022, cheap Ukrainian FPV drones have turned the open approach to any position into ground where armor rarely survives, forcing Russia into slow, infantry-led assaults and years of experiments to armor its tanks against drones.

The shield shot down some drones. Ukraine still killed the tank.

In early August, footage surfaced of Ukrainian drones destroying a Russian tank fitted with the Arena-M active protection system in the Dobropillia sector of Donetsk Oblast. Militarnyi identified the vehicle as a T-72B3A, side number 133, and Militarnyi reported that Ukraine's Security Service (SBU) released the clip. ISW geolocated the footage near occupied Volodymyrivka, east of Dobropillia.

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Dmytro Putiata, a Ukrainian combat drone specialist who posts as kriegsforscherD, spoke with the unit involved. On that tank, Arena-M shot down seven drones before its magazine ran dry, he said.

"Unfortunately, it works," Putiata wrote.

It still wasn't enough. Ukrainian crews finished the tank off with more drones. It took 15 to 20 first-person-view (FPV) drones to kill each vehicle, Putiata said. Footage shows the tank moving with its interceptor cells empty. It was the first time the Arena-M was credited with shooting drones down in combat.

Russia keeps sending tanks into that ground for a reason

Russian forces are experimenting with new technology to restore mechanized maneuver and break out of positional warfare—the static, trench-like fighting that has defined the front, ISW reported. They are fitting tanks with active protection systems to help armor survive in the "kill zone," the open ground where drones and other weapons destroy almost anything that moves.

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ISW judged that Arena-M alone cannot shield Russian assaults from the drones, let alone the rest of Ukraine's weapons. Russian commanders have largely kept tanks off the roads because drones kill them faster than factories rebuild them. In these assaults, the tank's job is less to fight than to survive long enough to drop infantry closer to Ukrainian lines. Russia will likely keep trying to restore maneuver even after its late-July mechanized assault in the Dobropillia sector failed, ISW added.

Why Russia wants the shield: the cages don't let tanks fight

The bolt-on armor carries a cost. Cope cages and "turtle" shells weigh tanks down and often jam the turret so the main gun can't aim. That trade-off is part of why Russia wants Arena-M: protection without the bulk, so a tank can still move and shoot. Russia recently sent tanks stripped of the welded cages, carrying the shield instead.

Arena-M is not new. Active protection systems like it were first built to stop anti-tank missiles, and Russia adapted this one to catch drones. The system's lineage dates back to the late Soviet era, and Russian industry has for years claimed mass deployment that never came. Designers worked on fitting it to T-72B3 and T-90M tanks since at least 2019, yet only single vehicles turned up by 2024—some used to shoot a propaganda film rather than fight.