Russian forces have likely seized the center of the hotly contested city of Bakhmut, where they are threatening an essential supply route for Ukrainian forces in the west, British intelligence said Friday. The eastern city is one of the last urban areas of Donetsk that has withstood Russian incursion. Now mostly reduced to rubble, the city center has been the focus of intense fighting for months. “Ukraine’s key 0506 supply route to the west of the town is likely severely threatened,” the British intelligence update warned. Ukrainian military expert Vladyslav Selezniov previously said that forces will have to retreat if...