Ukrainian forces are withdrawing from the front-line town of Vuhledar, perched atop a tactically significant hill in eastern Ukraine, after more than two years of grinding battle, military officials said Wednesday. Vuhledar, a town Ukrainian forces fought tooth and nail to keep, is the latest urban settlement to fall to the Russians as the war stretches deep into its third year and the Ukrainian army is gradually being pushed backward in the eastern Donetsk province. The tactical significance of the town, situated at the confluence of two major roads, is two-fold. Dominant heights and proximity to railway lines offer Moscow...