Russian sources claimed that the front has largely stabilized at the Oskil River, which runs just west of the Kharkiv-Luhansk Oblast border.[8] Russian milbloggers reported that Ukrainian and Russian forces are fighting around Lyman, but that Lyman remains under the control of Russian and proxy forces.[9] Some Russian sources also voiced concerns that Ukrainian troops are trying to cross the Siverskyi Donets River around Zakitne (about 15km southeast of Lyman) to take back Yampil.[10] Russian sources are seemingly focused on the Lyman-Yampil line as the next potential target for Ukrainian advances. https://www.understandingwar.org/backgrounder/russian-offensive-campaign-assessment-september-12