SLOVYANSK, UKRAINE - APRIL 24:  Ukrainian soldiers guard a roadblock along the highway on April 24, 2014 near Slovyansk, Ukraine. Today Ukrainian forces began to establish roadblocks around the cities of Slovansk and Donetsk, both strongholds of pro-Russian separatists in Eastern Ukraine. The Ukraine government claims 5 separatists were killed during skirmishes with the Ukrainian army in Slovyansk today.  (Photo by Scott Olson/Getty Images)