Ukraine Claims First Full-Scale Underground Counteroffensive Near Kupiansk

Ukraine's Khartiia Corps reports Operation Veles used underground infrastructure to strike behind Russian lines near Kupiansk, capturing over 30 prisoners. The claim of a 'world's first' underground counteroffensive is unverified and likely exaggerated, but the tactical innovation signals adaptation in urban/fortified warfare. The operation aims to disrupt a Russian threat to Kupiansk, a key frontline town.

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