Russian Pullback to Eastern Bank of River Nitrius Threatens 2025 Gains and Pushes Back Fight for Lyman
Russian forces have largely withdrawn to the eastern bank of the River Nitrius, raising the prospect that their advances west of the Zherebets since February 2025 could be reversed and pushing any decisive battle for Lyman into 2027.
Russian forces have seen their position along the River Nitrius in eastern Ukraine worsen over the course of August, to the point where most units have pulled back to the river’s eastern bank, according to recent assessments.
The River Nitrius lies in a sector where Russian troops had previously made gains as part of advances that began in February 2025 west of the River Zherebets. Those advances are now at risk. The latest reporting suggests that if current trends continue, Russian progress in this area could be completely rolled back, returning the line closer to earlier positions.
This deterioration also affects expectations for the battle over the town of Lyman. The same set of reports indicates that the fight for Lyman is being postponed by several months and may not reach a conclusive outcome until 2027. That timeline signals a slowing of offensive operations in this sector, as both sides contend with defensive lines, stretched logistics, and ongoing attritional fighting.
For Russian units, the move back to the eastern bank of the Nitrius marks a shift from using river lines as springboards for offensive action to treating them as defensive barriers. For Ukrainian forces, it presents potential opportunities to reclaim territory west of the river, though any such effort would also face significant risks and resource constraints.
The situation along the Nitrius and around Lyman will influence where both sides commit reserves and how they set priorities along a long front. A reversal of Russia’s 2025 gains west of the Zherebets would weaken its ability to claim steady territorial expansion in this part of eastern Ukraine.
Key indicators to watch include any renewed Russian attempts to re-establish positions west of the Nitrius, Ukrainian efforts to press into areas from which Russian troops have withdrawn, and changes in the reported timeline and intensity of fighting around Lyman as 2026 approaches.
Sources
- OSINT