20 September 2025

Why Russia Has Slowed Its Advance in Ukraine

Stavros Atlamazoglou

Russia’s recent change in tactics has led its grinding offensive to slow down in eastern Ukraine—but has also resulted in a notable decrease in monthly casualties.

The progress of the Russian military has slowed down as the Ukrainian forces are mounting successful counterattacks in several portions of the frontline.

Overall, however, the Russian forces continue to advance along several axes of advance, pressuring the Ukrainian defenders.

Russia’s Advances Are Slow, but Steady

In its latest intelligence estimate on the Ukrainian conflict, the British Ministry of Defence assessed that the Russian rate of advance in August had dropped after several months of increasingly larger territorial gains.

“Russian Ground Forces (RGF) likely seized between 450 and 500 sq km of Ukrainian territory in August 2025, a moderate decrease from the approximately 500-550 sq km in July 2025, and the approximately 550-600 sq km taken in June 2025. This follows month on month increase from March 2025 to June 2025,” the British Ministry of Defence estimated.

Russian progress has not come cheaply. In August, the Russian military, paramilitary units, and pro-Russian separatist forces lost approximately 28,790 men killed or wounded, according to Western estimates—losses of slightly under 1,000 casualties per day.

“It is likely that counter attacks by the Ukrainian Armed Forces in the vicinity of Pokrovsk, Kupiansk and Sumy contributed to the moderate reduction in the rate of Russian territorial gains in August 2025,” the British Ministry of Defence’s intelligence estimate added.

However, despite the decrease in Russian territorial gains over the past few weeks, it is clear that the Ukrainian forces are gradually losing territory to the advancing Russian military.

Russia Is Changing Battlefield Tactics in Ukraine

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