#Kupiansk, once liberated by #Ukraine in 2022, has fallen again to Russian forces after months of renewed assaults. Russian troops crossed the #OskilRiver, reportedly using underground pipes and civilian disguises to infiltrate the city. Drone footage shows #Moscow’s units advancing under cover of dense autumn foliage, while Ukrainian artillery teams struggle to counter relentless drone-backed attacks. The Kara-Dag Brigade now holds the northern corridor, forming a deadly defense zone. Kupiansk