Russia advances in Ukraine, pressure grows on fortress belt near Kostyantynivka

Russian forces are intensifying their offensive in eastern Ukraine, slowly advancing on Kostyantynivka, a strategically vital city in the Donbas region. This push marks a significant development along the 1200-kilometer front line, where Russian territorial gains have otherwise largely stalled. Initial skirmishes have reached the city's outskirts, with small groups of Russian soldiers attempting to infiltrate the periphery, according to Ukrainian commanders.

Kostyantynivka is the southernmost of four key points forming Ukraine's defensive line in the heavily industrialized Donetsk region. The Russian advance underscores Moscow's persistent advantage in troop numbers, even as Ukrainian medium-range drone strikes have impacted the attackers' combat power. Experts note that these attacks have not been sufficient to halt Russian offensives entirely.

"Although Russia is suffering heavier losses in the rear, it is still capable of continuing its offensives, at least in certain sectors," said Emil Kastehelmi of the Finnish conflict analysis team Black Bird. This suggests that close-quarters combat within the city is likely to follow, potentially mirroring the protracted sieges seen in other eastern Ukrainian cities like Pokrovsk and Avdiivka.

Should Russia capture Kostyantynivka, it would serve as a launching point for further advances north along the "fortress belt," which has become the main axis of the Russian campaign. However, any further progress is anticipated to be a slow and costly endeavor. Russian President Vladimir Putin has reiterated his demand for control over the entire Donetsk region before the war can conclude, though Ukraine still holds approximately one-fifth of the region after more than four years of conflict.

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Although Russia is suffering heavier losses in the rear, it is still capable of continuing its offensives, at least in certain sectors.