Russia’s August Advance Stalls as Ukraine Reclaims Territory and Shifts Drone Tactics

Russian forces advanced only 2.91 square kilometers per day in August 2026, failing to capture Kostyantynivka despite months of fighting. Ukraine reclaimed 129.81 square kilometers through counteroffensives in the Lyman and Oleksandrivka directions. Russia shifted to jet-powered drones, which have a lower interception rate, while German officials blamed Moscow for a drone attack on Leipzig/Halle Airport. Putin expanded his security service and reshuffled law enforcement, potentially preparing for mobilization.
Key points
- Russia seized 90.35 square kilometers in August 2026, a fraction of the 505.55 square kilometers gained in August 2025.
- Ukraine liberated 129.81 square kilometers in August 2026, with ISW noting this figure is likely conservative.
- Russian forces suffered 42,020 casualties in August 2026, the second consecutive month exceeding 40,000 casualties.
- Germany attributed the August 5 drone attack on Leipzig/Halle Airport to Russia, calling it a hybrid operation.
- Putin expanded the Federal Protective Service staff and reshuffled 13 law enforcement officials on August 31.
Background
This assessment follows ISW’s earlier reports from August 2026, which noted that the Russian spring-summer offensive had stalled with high casualty rates. Previous coverage also highlighted Ukrainian intelligence regarding potential Russian ground offensives against Kyiv and Chernihiv, though no troop buildups were confirmed at that time. The current report details the operational reality on the ground, showing continued slow Russian gains and significant Ukrainian counteroffensive successes.
How outlets are covering it
ISW emphasizes the stagnation of the Russian offensive, highlighting that gains are slow and limited despite high casualties. They note that Russian forces have failed to complete the seizure of Kostyantynivka, holding only 72.23 percent of the settlement. UA.NEWS focuses on the tactical buildup in the Lyman sector, suggesting Russia is preparing for a new offensive wave by amassing troops and striking Ukrainian logistics. UA.NEWS also highlights the increasing reliance on foreign recruits, noting that up to 30 percent of Russian troops in the Sloviansk sector may be from Latin America, Africa, and Southeast Asia, though these units are often poorly trained. ISW contrasts this with the broader strategic picture, noting that Russian advances are a fraction of previous years and that Ukraine is successfully reclaiming territory.
Why it matters
The slow Russian advance and high casualty rates suggest that Moscow’s current recruitment strategy may be unsustainable without broader mobilization. The shift to jet-powered drones indicates a tactical adaptation to Ukrainian air defenses, potentially increasing civilian harm. The attribution of the Leipzig/Halle attack to Russia by German officials signals a potential escalation in hybrid warfare against NATO members. Putin’s security and law enforcement reshuffles may indicate preparations for domestic unrest or mobilization, affecting regional stability.
What to watch
ISW expects to update its assessment as more evidence becomes available on Ukrainian gains in the Lyman direction. The situation in the Lyman sector remains dynamic, with Russia potentially preparing for intensified offensive operations. Ukraine will likely continue its long-range strike campaign against Russian oil refineries and military assets. The impact of the Leipzig/Halle attack on NATO response and Russian hybrid operations will be closely monitored.
- Russian Offensive Campaign Assessment, September 1, 2026 Institute for the Study of War
- The Russia-Ukraine War Report Card, Aug. 25, 2026 Russia Matters
- Russian Offensive Campaign Assessment, August 26, 2026 Institute for the Study of War
- The Russians are concentrating their forces for a new offensive in the Lyman area UA.NEWS
- Russian activity increases in Lyman sector — spox Demchenko Ukrinform
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