The Russian military says its mercenary forces have overrun Bakhmut, though the Ukrainian military says it is continuing to defend the eastern city that has hosted some of the war’s fiercest fighting for the past several months. The Kremlin-supported Wagner group said earlier in the day that it had taken the city. The protracted fighting for the city, which has little strategic value, has slowed Russia’s full-scale invasion and brought its squabbles with allies into public view.