Inside Ukraine’s Kill-Zone: Drones Reshape Frontline Warfare

After 225 days in a front-line foxhole, the Ukrainian infantryman’s muscles were so weak he could barely walk.

His commanders attempted five times to rotate him with another soldier but could never reach him due to constant drone threats that make troop rotation in eastern Ukraine nearly impossible.

This area near Kostyantynivka has become one of the most dangerous hotspots, with Ukrainian military officials acknowledging that Russian forces have reached its outskirts.

Known as Kenya, the infantryman required two days to traverse 11 kilometers (6.8 miles) back to his brigade, evading mines and hiding from drones to escape.

Ukraine’s 93rd Brigade is tasked with defending Kostyantynivka and its surrounding towns and villages from the Russian advance.

If this highly strategic city falls, Moscow could push toward the last remaining Ukrainian strongholds in the Donbas region – Kramatorsk and Sloviansk – from the north, east and south.

Vladimir Putin views capturing the Donbas as Russia’s “priority goal,” and Ukrainian intelligence reports he wants it completed this year. President Volodymyr Zelensky believes the Kremlin is planning another major offensive in the summer.

However, Russia’s campaign has recently stalled in the region.

Moscow gained half as much territory in the Donbas in April as it did in March, and only a sixth of what it captured in December 2025, according to Ukrainian monitoring website DeepState.

Kenya’s mission was to hold his position and listen for any movement outside, engaging only if Russian troops attempted to advance against him and his comrade.

“Most fighting was done by drones,” he said, noting that these weapons have transformed how wars are fought.

Kenya and his brigade are experiencing the paradox of modern warfare: as machines increasingly replace humans on the front line, the role of troops grows more critical for seizing or defending territory.

Gone are the battles where columns of tanks and waves of soldiers charge enemy positions.

Instead, assaults often involve two or three soldiers walking across a field, riding motorbikes, and occasionally even using horses or bicycles.

Speed has become more important than armor for survival inside the “kill-zone” – a wide, desolate area dominated by drones that hunt anything that moves.

This grey zone along the front line lies within the range of remotely piloted drones operated by both sides.

“Every time when we had to come out of our positions, we prayed we would come back alive,” said Kenya. “At night, we had to put on anti-drone cloaks to protect us against thermal cameras, but they would last for 20 minutes at the most.”

Drones cannot seize positions or control heights and crossings.

Thus, even in the age of robots and remotely operated weapons, the old rule of war persists: without boots on the ground, an army cannot hold territory.

That is why Ukraine keeps soldiers like Kenya in small foxholes and dugouts inside the kill-zone, where they can do little more than stay and mark that territory.

Their greatest fear is detection by Russian forces. That fate befell Khani, who spent 122 days at the front after coming to Ukraine as a Palestinian student in the 1990s and remaining.

Khani’s position was in the basement of a two-story house that Russian drones and artillery reduced to rubble.

When Russian troops attempted to enter the basement, Khani and his fellow soldiers opened fire, revealing their location.

“Once they knew we were there, they first dropped explosives from drones, then kamikaze drones attacked us,” he recalls.

A drone attached to fiber-optic cables managed to fly inside the basement but became tangled in its wires at the entrance and started spinning. Khani shot the cable reel, and the drone lost connection with its pilot.

At that point, two Russian soldiers stormed his position. “They detonated anti-tank mines outside and destroyed the entrance, burying it under debris. They thought we were dead.”

They survived thanks to a hidden exit they had dug as a precaution.

Granata, who recently left the front after 110 days, said his fellow soldier was badly wounded when Russian forces dropped an explosive containing gas to force them to abandon their positions.

All supply routes in the Donbas kill-zone are now cut off, so food and ammunition must be delivered to forward posts by aerial drones. However, these drones are unreliable, often destroyed or jammed, making supplies intermittent.

Kenya said his meager food supplies frequently fell victim to mice. “They gnaw everything except metal. Because of the mice, we had to eat all food products except canned food quickly, or else the mice would destroy them all.”

When asked what they lacked most in their foxholes, the soldiers unanimously answered: water.

“The most memorable moment for me was when it rained,” said Kenya. “I got undressed and went outside to wash myself.”

During winter, temperatures dropped to -25C, rendering old, worn-out sleeping bags nearly useless when soldiers slept on frozen ground or cold concrete floors.

Khani’s partner fell ill, and “one day he just didn’t wake up,” Khani said. The partner died of hypothermia.

Ukraine’s military reports that Russian forces are regrouping along the front line ahead of a possible summer offensive.

To counter this, Ukrainian forces say they have intensified attacks on Russian military logistics and supply routes.

This may have slowed the Russian advance. According to the U.S.-based Institute for the Study of War, Moscow lost more territory in Ukraine last month than it managed to gain.

Yet it remains the foot soldiers at the front of the kill-zone who bear the biggest task of holding Ukrainian territory. Without them, Khani said, the front line would collapse.