Russian troops are inching towards 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…

Fighting intensifies as Russian troops approach Kostiantynivka, a key fortified stronghold in eastern Ukraine's Donetsk region.