# Russian offensive in eastern Ukraine – August 2026 > Live situation record from CLSTR: https://clstr.news/situations/russian-offensive-in-eastern-ukraine > Updated: 2026-08-28T05:35:00.000Z. Sources: 192. Developments: 16. The Russian offensive in eastern Ukraine continued through August 2026, focusing on the Donetsk region and the Slovyansk-Kramatorsk agglomeration. Russian forces have prioritized operations toward Pokrovsk and Dobropillya to encircle Ukrainian positions, utilizing elite airborne and marine units. Despite these efforts, analysts suggest the offensive is characterized by slow, costly tactical advances rather than decisive breakthroughs, contributing to a war of attrition that may lead to Russian exhaustion. In early August, the Russian Defence Ministry reported the seizure of Vasyutinske, east of Kramatorsk, and Toretsk, southwest of Druzhkivka. While Russian commanders previously claimed to have captured Kostiantynivka, Ukrainian officials continue to dispute such assertions. Open-source intelligence has noted Russian advances near Illinivka and Chasiv Yar, while the Ukrainian General Staff reported repelling numerous attacks in the Kostiantynivka and Illinivka sectors. By mid-to-late August, the Russian Ministry of Defense claimed further territorial gains, reporting the capture of Nikolaipolie and Matiashevo in the Donetsk region by the Center and South groups of troops. As fighting intensified, Russian forces reportedly achieved a breakthrough at the Orikhiv bridgehead, leading to street fighting. In response, President Volodymyr Zelenskyy appointed military commanders Andrii Biletskyi and Denys Prokopenko to lead regional defenses. By late August, combat activity remained high near Pokrovsk and Kostiantynivka, though Russian advances were estimated at an average of 20 meters per day. Analysts warned that if Ukraine fails to deploy reinforcements, Russian forces could reach the outskirts of Kramatorsk and Sloviansk by the end of the year. Furthermore, intelligence suggests Moscow’s long-term strategic goals may extend to seizing the Mykolaiv, Kherson, and Odesa regions, potentially necessitating partial or full military mobilization to sustain such high-intensity operations. ## Claims - Russian forces have captured the villages of Vasyutinske and Toretsk in the Donetsk region. (corroborated by 11 sources) - Ukrainian forces repelled 24 attacks near Kostiantynivka, Illinivka, and other centers. (corroborated by 10 sources) - Russian forces made advances near Illinivka and near Chasiv Yar. (corroborated by 10 sources) - Ukrainian officials have disputed Russian claims that they seized Kostiantynivka. (corroborated by 10 sources) - Russian forces captured the town of Krasni Kut in Donetsk province. (single source) - Ukrainian President Volodymyr Zelensky met with U.S. President Donald Trump at the White House to discuss diplomacy. (single source) - Serbia's EU accession process is delayed due to concerns over rule of law and its stance on sanctions against Russia. (single source) - Eight EU member states oppose opening accession talks with Serbia. (single source) - Three Russian grain terminals (NZT, KSK at Novorossiysk and ZTKT at Taman) have limited truck deliveries due to navigation risks. (single source) - Increased navigation risks stem from Ukrainian drone attacks on vessels in the Sea of Azov and the Black Sea. (single source) - Russia's total maritime grain exports are about 50 million tonnes per year; the three terminals have capacity of over 20 million tonnes annually. (single source) - Russian drone operators disrupted a Ukrainian troop rotation in the Krasny Liman sector. (single source) ## Timeline ### 2026-08-28: Russia targets Donbas with potential long-term goals beyond eastern Ukraine Russian forces continue intense offensives in Ukraine, targeting the Donbas. Analysts warn that Moscow's goals may extend to Odesa and Kherson, potentially requiring large-scale mobilization. 2 sources. https://clstr.news/cluster/russia-targets-donbas-with-potential-long-term-goals-beyond-eastern-ukraine ### 2026-08-26: Ukraine intensifies eastern defenses amid Russian breakthroughs Russian forces have intensified attacks in eastern Ukraine, breaking through at Orikhiv. Kyiv has appointed new commanders to bolster defenses in Donetsk amid concerns over manpower and air defense. 2 sources. https://clstr.news/cluster/ukraine-intensifies-eastern-defenses-amid-russian-breakthroughs ### 2026-08-20: Russia captures Nikolaipolie and Matiashevo in Donetsk Russian forces have taken control of Nikolaipolie and Matiashevo in Donetsk, reporting the interception of 1,504 drones and significant Ukrainian military losses in a single day of combat. 3 sources. https://clstr.news/cluster/russia-captures-nikolaipolie-and-matiashevo-in-donetsk ### 2026-08-09: Donetsk region: Russia claims capture of Vasyutinske and Toretsk villages Russia claims to have captured the villages of Vasyutinske and Toretsk in Donetsk, while Ukrainian forces report repelling dozens of attacks near Kostiantynivka and Illinivka. 12 sources. https://clstr.news/cluster/russia-claims-capture-of-two-villages-in-eastern-ukraines-donetsk-region ### 2026-08-08: Russia targets Donbas expansion amid attrition concerns Russia continues its offensive in Ukraine, targeting the Donetsk region and the Donbas. Analysts warn of Russian exhaustion despite efforts to encircle Ukrainian positions near Pokrovsk and Dobropillya. 2 sources. https://clstr.news/cluster/russia-targets-donbas-expansion-amid-attrition-concerns ### 2026-07-31: Intense fighting as Russian forces breach Kostiantynivka in Donetsk Russian troops have breached large parts of Kostiantynivka, a strategic city in Donetsk, prompting fierce fighting and warnings of possible encirclement as Ukraine and Russia vie for control of the southern def 2 sources. https://clstr.news/cluster/intense-fighting-as-russian-forces-breach-kostiantynivka-in-donetsk ### 2026-07-29: Russian Forces Advance in Donbas, Capture Ukrainian Ports Russian forces claim advances in Donbas, nearing Kramatorsk, and report destroying over 30 NATO‑linked cargo ships at Black Sea ports. 3 sources. https://clstr.news/cluster/russian-forces-advance-in-donbas-capture-ukrainian-ports ### 2026-07-27: Russian Forces Capture Krasni Kut in Donetsk, Ukraine Russia captured Krasni Kut in Donetsk amid its Ukraine invasion; Serbia's EU accession stalls over rule‑of‑law concerns; Russian Black Sea grain terminals cut truck shipments due to rising navigation risks from 3 sources. https://clstr.news/cluster/russian-forces-capture-krasni-kut-in-donetsk-ukraine ### 2026-07-26: Russia Claims Capture of Kostiantynivka and Shevchenko in Donetsk, Ukraine Russia says its forces captured the strategic city of Kostiantynivka and the village of Shevchenko in Ukraine's Donetsk region, with Ukrainian officials yet to comment. 2 sources. https://clstr.news/cluster/russian-forces-capture-kostiantynivka-and-shevchenko-in-donetsk-ukraine ### 2026-07-22: Kostiantynivka Battles Intensify as Ukraine Names New Chief of Staff Ukraine claims Kostiantynivka recaptured, Russia counters with video confirming its control. Kyiv also names Mykhailo Drapatyi as new chief of staff, prompting angry reactions from Russian war bloggers. 2 sources. https://clstr.news/cluster/kostiantynivka-battles-intensify-as-ukraine-names-new-chief-of-staff ### 2026-07-19: Russian forces claim control of strategic town Krasny Liman in Ukraine's Donbass Russian troops say they have seized Krasny Liman in Ukraine's Donbass, breaking Ukrainian defenses and advancing toward Konstantinovka, Druzhkova and nearby villages. 2 sources. https://clstr.news/cluster/russian-forces-claim-control-of-strategic-town-krasny-liman-in-ukraines-donbass ### 2026-07-18: Russian Forces Claim Liberation of Volnovoy and Linna Towns in Ukraine Russia's defence ministry says its troops have liberated Volnovoy and Linna (Mernoy) and advanced in Shyftchenko, Krasnoiarivsk and Svitlovodsk, citing heavy Ukrainian casualties and equipment losses. 2 sources. https://clstr.news/cluster/russian-forces-claim-liberation-of-volnovoy-and-linna-towns-in-ukraine ### 2026-07-07: Ukraine Rejects Russian Claim of Capturing Kostiantynivka in Donetsk Ukraine says Kostiantynivka remains under its control, rejecting Russian claims and highlighting the town’s strategic logistics role in the Donetsk front. 2 sources. https://clstr.news/cluster/ukraine-rejects-russian-claim-of-capturing-kostiantynivka-in-donetsk ### 2026-07-02: Ukraine rejects Russian claim of taking Kostyantynivka in Donetsk Russia says it has captured the strategic Donetsk city of Kostyantynivka, but Ukraine’s army and President Zelensky deny the claim, insisting the city remains under Ukrainian control and calling the Russian公告 a 159 sources. https://clstr.news/cluster/konstantinovka-ceasefire-proposal-for-ukrainian-soldier-body-exchange ### 2026-06-27: Russian troops seize Liman and nearby villages in Ukraine Russia says it captured Piszantsi, Novoskelivka and practically took Liman, advancing toward Sloviansk, while reporting massive drone shoot‑downs and heavy Ukrainian casualties. 7 sources. https://clstr.news/cluster/russian-forces-capture-villages-in-eastern-ukraine-shoot-down-hundreds-of-drones ### 2026-06-26: Russian troops seize most of Kostiantynivka and push toward Kramatorsk, Sloviansk Russian forces have seized most of Kostiantynivka in Donetsk, advancing toward Kramatorsk and Sloviansk, while Ukrainian resistance shrinks amid contradictory U.S. statements about the war’s progress. 2 sources. https://clstr.news/cluster/russian-troops-seize-most-of-kostiantynivka-and-push-toward-kramatorsk-sloviansk --- Cite as: Russian offensive in eastern Ukraine – August 2026. CLSTR, https://clstr.news/situations/russian-offensive-in-eastern-ukraine