The Russian army has brought large numbers of troops and hundreds of pieces of military hardware to an area near the Ukrainian border, a Reuters correspondent reports.
Russia's War Against Ukraine
Radio Free Europe/Radio Liberty: Russia massing troops, heavy weapons at Ukrainian border
Ukrainian servicemen walk to their position as workers dig trenches on the frontline of fighting against pro-Russian separatist in eastern Ukraine, near Artemivsk, on May 26, 2015.
