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Fighting reaches outskirts of Ukraine's stronghold Kostiantynivka

Published by Global Banking & Finance Review

Posted on May 2, 2026

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· Last updated: May 2, 2026

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Fighting reaches outskirts of Kostiantynivka, a Ukrainian stronghold

Russian Advances and Ukrainian Defense in Eastern Ukraine

KYIV, May 2 (Reuters) - Russian troops are inching toward the city of Kostiantynivka in Ukraine's eastern Donetsk region, trying to establish a foothold close to a heavily defended area, Ukraine's top army official said on Saturday. 

Kostiantynivka, along with other cities, forms a so-called fortress belt in the country's east - an area well fortified by the Ukrainian military.

Current Situation in Kostiantynivka

"We are repelling the Russian occupiers' persistent attempts to gain a foothold in the outskirts of Kostiantynivka using infiltration tactics. Counter-sabotage measures are going on in the city," Oleksandr Syrskyi, Ukraine's army chief, said on the Telegram app. 

Russian Control and Grey Zones

A Ukrainian battlefield mapping project called DeepState ⁠shows that Russian troops control an area around only one kilometre (0.6 mile) from the city's southern outskirts. 

Small chunks of Kostiantynivka, in southeast Ukraine, are marked as a grey zone, meaning neither Ukraine nor Russia has full control over them.

Russian Military Claims and Advances

Capture of Novodmytrivka

Russia's Defence Ministry said on Wednesday its forces had taken control of Novodmytrivka, just north of Kostiantynivka. Moscow's top general, Valery Gerasimov, said in April that troops were advancing on the north and south of the city.

Increase in Offensive Attempts

Syrskyi said that Russian offensive attempts had risen noticeably in April. Since Monday, Russian troops have carried out 83 assaults in this sector using small infantry groups, he added.

Wider Regional Context

Demands and Stalled Peace Talks

Moscow demands that Ukraine pull back from areas in the Donetsk and neighbouring Luhansk regions that Russia has failed to capture during its four-year full-scale war. U.S.-brokered peace talks stalled over the issue as Ukrainian officials say Kyiv will not cede land it still controls. 

Recent Russian Gains

For the past few years, Russian troops have not managed to capture any big cities in Ukraine, inching forward and announcing the capture of towns and villages.

Pokrovsk: A Significant Gain

The small city of Pokrovsk, whose more than 60,000 pre-war population mostly fled, was the most significant Russian gain in the past year. It took Moscow's troops months to advance, and Kyiv says it still has some positions in the city.

Myropillia and Buffer Zone Claims

On Saturday, Russia's Defence Ministry said it had seized the village of Myropillia in Ukraine's northern Sumy region, where Moscow says it wants to establish a buffer zone.

But the Kursk group of the Ukrainian military, writing on Facebook, dismissed the Russian report as a "complete lie" and said its units controlled the area.

Air Strikes and Civilian Impact

Also in Sumy, the regional governor said a Russian air strike near the town of Krovelets had injured six people, including two in serious condition.

(Reporting by Yuliia Dysa; Editing by Keith Weir, Ron Popeski and Ethan Smith)

Key Takeaways

  • Kostiantynivka forms the southern anchor of Ukraine’s vital 50 km‑long ‘fortress belt’, key to defending Donetsk Oblast and built up over 11 years (understandingwar.org).
  • Ukrainian army chief Syrskyi reports 83 Russian small‑unit assaults in April, with infiltration threats just outside the city and ongoing counter‑sabotage measures within (apnews.com).
  • Russian advances have similarly targeted other strongholds—such as the capture of Pokrovsk in early 2026 after prolonged fighting—highlighting the strategic stakes of these fortress cities (en.wikipedia.org).

References

Frequently Asked Questions

Where is Kostiantynivka and why is it significant?
Kostiantynivka is a city in Ukraine's eastern Donetsk region and forms part of a heavily fortified 'fortress belt' important for Ukraine's military defense.
How close are Russian troops to Kostiantynivka?
Russian troops reportedly control areas only about one kilometre from the southern outskirts of Kostiantynivka.
What tactics are Russian forces using near Kostiantynivka?
Russian troops are using infiltration tactics and small infantry group assaults to try and gain a foothold near the city.
What is the current status of control in Kostiantynivka?
Parts of southeastern Kostiantynivka are contested, with neither Ukraine nor Russia having full control over these grey-zone areas.
Why are peace talks between Russia and Ukraine stalled?
Peace talks are stalled due to Russia's demands for Ukraine to withdraw from areas of Donetsk and Luhansk that it has not captured, which Ukraine refuses.

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