Kremlin's 2025 Goals Unmet as Russian Advance in Ukraine Stalls, ISW Reports.

Russian Offensive in Ukraine Loses Momentum

According to TSN.ua: Analysts from the Institute for the Study of War (ISW) report that Russia's military advance in Ukraine slowed significantly in late December 2025 and early January 2026, attributing part of the slowdown to adverse weather conditions. This deceleration indicates a broader failure by the Kremlin to achieve its stated strategic objectives for the year 2025.

Fluctuating Rates of Advance

Russian forces increased their territorial control in Ukraine during December 2025. From December 1 to 17, they seized an additional 276.44 square kilometers. Subsequently, from December 17 to 31, they expanded their presence by another 89.05 square kilometers. However, momentum dropped again from December 31, 2025, to January 13, 2026, with gains limited to 73.82 square kilometers.

The seven-day average rate of the Russian army's advance peaked on December 1 and 2, 2025, before a marked slowdown set in. The ISW assessment highlights that Moscow had planned to fully capture the Donetsk and Luhansk oblasts by September 1, 2025, but both goals remain unfulfilled. This ongoing conflict is a central front in the largest war in Europe since World War II. These factors point to significant difficulties the Russian military is facing in executing its strategic aims in Ukraine.

The frontline situation demonstrates that despite initial gains, Russian forces are confronting serious challenges that hinder their offensive. The combination of deteriorating weather and unmet strategic plans suggests potential systemic issues in command and resource allocation. This could have profound implications for the future trajectory of the conflict in the region.