Official documents issued in the self-proclaimed people's republics located in the Donbass region are not accepted elsewhere. There are many obstacles to procuring official Ukrainian documents, but it is not impossible.
Deutsche Welle: Underdocumented in Donbass – eastern IDs invalid in Kyiv
A resident reacts outside his house damaged in shelling between Ukrainian forces and pro-Russian separatists in the village of Oktybrskiyi in the Donetsk region on Aug. 2, 2015.
