A transport hub, an arms factory and a gas field: Ukraine recaptured vitial areas east of Kharkiv from Russia in a matter of days. The figures still amaze people in Ukraine — since September 6, the Ukrainian army has liberated more than 6,000 square kilometers (2,378 square miles) and more than 300 towns with a total population of about 150,000 people in the Kharkiv region, according to Ukrainian Deputy Defense Minister Hanna Maliar. Reportedly, most of the territory in the north and east of Kharkiv Oblast has been recaptured, an area Russia had quickly occupied and held at the start...