Russia said on April 5 it was in high-level contact with the United States about tensions over Ukraine and dismissed fears of a Russian military buildup even as it vowed to respond to new Ukrainian sanctions.
Russia's War Against Ukraine
Reuters: Russia says it is in high-level contact with US over Ukraine
An armed pro-Russian activist guards a checkpoint on the Kharkiv-Donetsk road near the entrance to the eastern Ukrainian city of Sloviansk on April 12, 2014.
