NATO calls on Russia to remove its troops from eastern Ukraine
Lesson Brief
BBC Russian
NATO has announced a sharp increase of Russian military equipment, vehicles, and combat troops crossing the border into eastern Ukraine in recent days. These latest actions raise fears of a return to the heavy fighting seen during the summer months between the Ukrainian military and the Russian-supported separatists in the rebel-controlled areas surrounding Donetsk and Lugansk. Russia's defense ministry has denied any such action and finds the grounds for NATO's claims false and baseless.