The U.S. envoy informs about thousands of Russian troops and hundreds of Russian tanks in Donbas / Photo from zr.ru

"I am not in a position to give you a definitive number in this unclassified setting. I would say it's in the thousands and thousands [of Russian troops in eastern Ukraine]," Nuland said when testifying at a House Foreign Affairs Committee hearing on Wednesday on Ukraine and its ongoing conflict with Russia.

"Since December, Russia has transferred hundreds of pieces of military equipment, including tanks, armored vehicles, rocket systems, heavy artillery," she said.

Nuland has earlier said that the United States is closely watching how the Minsk agreements of February 12 are being implemented. 

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