Ukrainian forces surprised occupying Russians with a one-two punch Thursday, pushing deep into enemy territory to open a second front in Kyiv’s counterattack. Ukrainian authorities announced the liberation of 20 villages in the northeast, outside Kharkiv, as the military pushed for the occupied city of Izyum — all while continuing a fierce fight for Kherson in the south. Oleksiy Hromov, a deputy chief with the general staff of the armed forces of Ukraine, said Thursday that his nation’s forces — pushing toward the Donbas from Kharkiv — had penetrated more than 30 miles beyond Russia’s defensive line. “Since the beginning...