3.The military published footage of the engagement that reportedly took place near the village of Novomlynsk, lying some 20 kilometers (12 miles) north of Kupiansk.Russian troops ramped up their efforts near Kupiansk in early September and approached its industrial outskirts in the northeast. Recently, Ukrainian forces repelled several Russian attempts at entering the town.Thanks to numerical advantage, Russian forces managed to cross the Oskil River, seeking to establish a bridgehead on the other side, the General Staff said.0:00/1×Footage of Russian forces crossing the Oskil River in Kharkiv Oblast and of Ukrainian forces raising a flag in Novomlynsk, Kharkiv Oblast, Ukraine, published on Dec. 3, 2024. (General Staff of Ukraine's Armed Forces/Telegram)Ukrainian forces have heavily fortified the west side of the Oskil River to prevent Russian forces from approaching Kupiansk from the north.