Ground Robots Inherit the Kill Zone

Borys Drozhak has a vision: a front line almost free of humans, patrolled by flying drones and ground robots, and continuously monitored by AI-controlled sensor networks. And it’s not a pipe dream. Ukrainian roboticists have made major strides in that direction over the past four years. Remotely controlled ground vehicles fitted with machine guns and grenade launchers now patrol the no-man’s-land straddling the front, part of a robotic legion that has stymied Russia’s territorial ambitions so far this year.Drozhak is a co-founder and CEO of RoverTech, which manufactures the Zmiy, one of Ukraine’s most successful ground robots. Zmiy, Ukrainian for snake, is an 800-kilogram (1,700-pound) rover, 2.15 by 1.5 meters in size, with 75-centimeter diameter wheels. The Zmiy comes in various configurations—for demining, logistics, fighting fires, firing a machine gun, or launching grenades. According to Drozhak, the uncrewed ground vehicle (UGV) is a record-breaker among Ukrainian ground robots. It’s engineered to be nearly noiseless and emit as little heat as possible, helping it to elude Russia’s intelligence, surveillance, and reconnaissance (ISR) drones. As a result, a Zmiy rover completes on average 57 missions across the kill zone before being destroyed. The kill zone is the roughly 35-kilometer-wide swath of land that straddles the front line; its width is variable and determined mainly by the growing range of the drones.“Usually, a UGV on the battlefield lasts about seven missions,” Drozhak says. “The Zmiy is quite a bit bigger and stronger” in comparison with most other UGVs, “and can make it back even if two of its wheels get destroyed.”Drozhak is a software engineer turned roboticist whose story is echoed everywhere in the Ukrainian defense establishment. Before the Russian invasion, he was living a quiet life in Ireland, working for an international software development firm. He returned home shortly after the war began to help defend his homeland. Together with his friend, Vasyl Korenovskyi, who had been a mining engineer, he founded RoverTech with the goal of building robots to perform some of the most dangerous tasks in the war zone. In 2023, they rolled out their first product—the Zmiy de-miner. Earlier this year, one of RoverTech’s assault UGVs was part of a widely reported operation that forced a group of Russian soldiers to surrender without the presence of any Ukrainian troops. Such feats, Drozhak insists, are not rare on Ukrainian battlefields these days.UGVs are the latest chapter in the military-technology race spurred by the war in Ukraine. Scores of Ukrainian startups have developed dozens of different small ground robots, each with typically multiple variants, over the past three years. They’re mostly replacing human-driven tanks and other military vehicles that used to crisscross the war zone. These remotely controlled robotic vehicles cost a few tens of thousands of dollars apiece compared to millions for a traditional tank, and they can be tweaked and modified in frontline workshops to serve the most urgent needs. Zelenskyy Orders Up 50,000 More UGVsIn April, Ukraine’s President Volodymyr Zelenskyy signed an order for the government to procure 50,000 UGVs for Ukraine’s military forces by the end of 2026. That’s more than three times as many as the government purchased in 2025 and a massive increase from the 2,000 procured in 2024, according to defense analyst Marc C. Lange.The rise of UGVs, Lange explains, is a direct response to the warfighting revolution ushered in by the speedy evolution of uncrewed aerial vehicles that came to define the war in Ukraine.As the number of drones zooming above the front line rose and their range increased, the battlefield became completely transparent. Today, anything that enters the kill zone gets hit by a first-person view (FPV) kamikaze drone within minutes.“Any armored formation, any resupply and logistics vehicle, and any manned formation anywhere near the edge of the battle area has between seconds to a low amount of minutes before it gets turned to dust,” Lange says. “The Ukrainians were losing drivers. Traditional methods of evacuating injured soldiers became impossible. That space is basically unsurvivable.”Ukraine, suffering from a shortage of infantry, has taken that problem more seriously than Russia, which has a larger pool of fresh recruits to draw from. UGVs began ferrying supplies to troops at frontline positions in 2024. Gradually, they took over the complex and risky evacuations of the wounded, using special enclosures to protect the soldier being transported. But this year, Lange says, is “the year of the assault UGV.”Emerging Ukrainian tactics combine UGVs with real-time reconnaissance and surveillance from aerial drones, which discover enemy troops, often under cover of night. The reconnaissance data are then used by remote operators who guide UGVs as they stalk, corner, and shoot to kill. Oleg Fedoryshyn, the head of research and desi