Operation Vivaldi: How Ukraine Turned Defensive Battles into Eastern Breakthrough
Ukrainian commanders revealed details of Operation Vivaldi, a successful counteroffensive in eastern Ukraine that utilized advanced drones, ground robots, and decentralized command to annihilate a Russian division and halt Moscow's advances.
After months of strict operational security, Ukrainian military commanders have disclosed details of Operation Vivaldi, a prolonged military campaign that turned a desperate defense into a successful counteroffensive in the country's east. According to The New York Times, the operation combined advanced drone warfare, unmanned ground vehicles, and a decentralized command structure to prevent Moscow from encircling the remaining cities in the Donetsk region.
The turning point began in the summer of 2025 when General Andriy Biletsky took command of the 3rd Army Corps, consolidating six brigades, including the 66th Mechanized Brigade. Field commanders were granted operational independence, allowing them to plug frontline breaches and dismantle Russian infantry infiltration tactics. According to General Biletsky, the operation launched in May successfully annihilated Russia's 144th Motorized Rifle Division and erased territorial gains Moscow had spent an entire year achieving.
Data from the Institute for the Study of War indicates that in October alone, the Russian military suffered its highest monthly casualty toll since the war began, with over 54,000 killed and severely wounded. Military analysts and Russian bloggers confirmed that Ukrainian forces recaptured significant territory north of Lyman and along the Zaporizhzhia front.
A central pillar of the Ukrainian victory was the deployment of remote-controlled ground robots. Fighters from the NC13 unit, operating under the 3rd Assault Brigade, utilized robotic all-terrain vehicles armed with Browning machine guns and rocket launchers, alongside kamikaze robots carrying 20 kilograms of explosives directly into Russian bunkers. These systems also handled critical logistical tasks, delivering three times the supplies of standard brigades and evacuating casualties under fire. General Biletsky described the current Russian posture in the sector no longer as an organized military operation, but as death rattles.
