Russia’s maintenance of high level of violence in Donbas is possible only because the Russian Federation alone controls more than 400 km of Ukraine-Russia border.
Russia's War Against Ukraine
UkrInform: Russia controlling 400 km of border in Donbas
A picture shows the STOP sign on the Ukrainian-Russian border, at the Ukrainian check-point of Severnyi, in the Luhansk region, eastern Ukraine, on June 6, 2014.