Today, there are important updates from the Kupiansk direction. Here, the battle for Kupiansk has reached its decisive conclusion, as Ukrainian forces aimed to break the last pockets of Russian resistance. The Russians were put under attack from all sides, and after months of brutal urban combat, the collapse of their last defensive positions was needed for Kupiansk to be finally free. With Ukrainians having already been very successful in their offensive, Russian forces attempted to reestablish a foothold through infiltration tactics. However, Ukrainian units had already locked down the main supply and access routes into the city, turning Kupiansk into a closed battlefield where any movement could be detected and targeted. Russian soldiers were forced to use improvised infiltration methods, including moving through empty underground pipelines. But as Russians had tried this several time

Source: It’s official: Ukrainian forces crushed the last defenders in Kupiansk