Moscow acknowledged on Friday that its forces had fallen back north of Ukraine's battlefield city of Bakhmut after a new Ukrainian offensive, in a retreat that the head of Russia's Wagner private army called a rout. The setback for Russia, which follows similar reports of Ukrainian advances south of the city, suggests a coordinated push by Kyiv to encircle Russian forces in Bakhmut, Moscow's main objective for months during the war's bloodiest fighting. "In three days of counter-offensive activity, the Ukrainian Armed Forces in the Bakhmut sector have liberated 17.3 sq. km (6.6 sq. miles) of territory," Serhiy Cherevatyi, spokesman...