The U.S. military is leading peacekeeping exercises in western Ukraine involving 15 nations, as President Barack Obama prepares to host Ukraine's leader for talks at the White House later this week.
Voice of America: US leading peacekeeping drill in western Ukraine
American troops arrive at the airport in Swidwin, Poland on April 23, 2014, after Washington said it was sending a force of 600 to the Baltic states as the crisis over Ukraine deepens.
