DRUZHKIVKA, Ukraine — The last bridge to the last city standing between the Russian army and control of easternmost Ukraine has collapsed, as soldiers engaged in pitched street battles for what little is left of the city and scores of civilians remained stranded under unrelenting bombardment.
Even after the final remaining bridge between the city, Sievierodonetsk, and Ukrainian-held territory to the west was toppled, Ukrainian officials insisted that supplies could still reach their…