Armed men guard at regional state building seized by the separatists in the eastern Ukrainian city of Slavyansk on April 18, 2014.  Pro-Russian rebels kept their grip on seized government buildings in Ukraine on Friday, a day after Kiev struck a deal with Russia and the West aimed at easing the crisis in the ex-Soviet republic. AFP PHOTO / GENYA SAVILOV        (Photo credit should read GENYA SAVILOV/AFP via Getty Images)