Border guards raise flags in two 'gray zone' settlements near Russian border.

'We pushed and they collapsed': How Ukraine liberated Kharkiv Oblast VOVCHANSK, Kharkiv Oblast - Three months after its liberation, Vovchansk still bears the scars of Russia's seven-month-long occupation. A small partly-destroyed concrete bridge leads into a town whose main road is now littered with charred vehicles turned upside down.

The local police station, used...