Russian troop build-up threatens city seen as key to seizing Ukraine's Donbas

Russian forces have infiltrated the strategic city of Kostyantynivka in eastern Ukraine, creating a 'grey zone' as they attempt to surround the area. Control of this city is considered vital for Russia's goal of seizing the entire Donbas region.
Why it matters
The fall of Kostyantynivka would represent a significant tactical shift in the ongoing war, potentially opening a path to major Ukrainian strongholds.
Share Save Add as preferred on Google Abdujalil Abdurasulov In Kyiv Reuters Ukraine s commanders say the situation in Kostyantynivka is still under control, but accept Russian troops are active in the city Russian troops have infiltrated the strategic city of Kostyantynivka in eastern Ukraine and are now trying to surround it.
The report relies on field accounts and military analysis, maintaining a neutral, objective tone.
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