
Kostiantynivka
Fortified Donetsk city on the M32; Russia's still-unmet main effort into August 2026.
Kostiantynivka, the fortified Donetsk city guarding the M32 approach to Kramatorsk, remains Russia's unmet main objective: ISW confirmed on 22 July that despite fabricated capture footage in June, the front there stays essentially static, at a cost of 53 Russian dead for every three Ukrainian.
Last refreshed: 3 August 2026 · Appears in 1 active topic
Did Russia actually seize Kostiantynivka, or was the footage fabricated?
Timeline for Kostiantynivka
Remained unseized as Russia's stated main effort
Russia-Ukraine War 2026: Russia fired most, gained least in JulyRemained Russia's unmet main effort on the front
Russia-Ukraine War 2026: ISW calls Ukraine's front line frozenMentioned in: Zelenskyy swaps out his top general
Russia-Ukraine War 2026Overnight barrage shifts no front line
Russia-Ukraine War 2026Mentioned in: Russia loses men 17 times Ukraine's rate
Russia-Ukraine War 2026Background
Kostiantynivka is a mid-sized industrial city in Donetsk Oblast, roughly 30km south of Kramatorsk on the M32 highway. It is one of four cities forming Ukraine's Fortress Belt, alongside Kramatorsk, Sloviansk and Druzhkivka, and sits on the approach route from Pokrovsk, which fell to Russian forces in December 2025 .
Its pre-war population was around 67,000. Holding the city matters strategically because its fall would sever the M32 approach to Kramatorsk, leaving no fortified city between Russian forces and the Kramatorsk-Sloviansk defensive anchor that has underpinned Ukraine's eastern front since 2014 .
Assault pressure on the city has been sustained since early 2026, with dozens of attacks recorded on individual days at the height of the fighting . The city's defence has become a proving ground for how Russia substitutes fabricated claims of capture for territorial gain it cannot achieve by force.
Kostiantynivka has still not fallen
In June Russian forces infiltrated 100 to 250 fighters into Kostiantynivka and circulated AI-generated video claiming a much larger seizure; Russia's defence ministry said 103 buildings had fallen, but independent analysts assessed only a small infiltration . The fabrication substituted for ground the city's defenders had not actually given up.
By 22 July the Institute for the Study of War confirmed Kostiantynivka as Russia's still-unmet main effort on a front it judged essentially static, recording three Ukrainian dead for every 53 Russian near the city, a ratio ISW says still has not bought Moscow the breakthrough it needs .