Ukrainian troops say they have made a significant push into rebel-held territory, claiming control over a large part of the separatist stronghold of Luhansk and nearly encircling Donetsk, the largest city still in rebel hands.
Russia's War Against Ukraine
Al Jazeera: Ukraine army pushes into rebel-held territory
A column of Ukrainian paratroopers rides in Druzhkivka, Donetsk region on August 19, 2014.
