Tens of thousands of Russian troops amass on border with eastern Ukraine . The U.S. and its allies accuse Russia of sending regular troops, tanks, artillery pieces and other weapons across the border. And in televised comments Saturday , Russian Foreign Minister Sergey Lavrov insisted his forces had no intention of crossing into Ukraine . Moscow insists it is only conducting military drills , but has pledged to protect ethnic Russians .
Tens of thousands of Russian troops amass on border with eastern Ukraine . The U.S. and its allies accuse Russia of sending regular troops, tanks, artillery pieces and other weapons across the border. Moscow insists it is only conducting military drills , but has pledged to protect ethnic Russians .