An armed man gestures from a barricade in front of the police headquarters in Slaviansk
An armed man gestures from a barricade in front of the police headquarters in Slaviansk April 12, 2014. Armed separatists took control of the eastern Ukrainian city of Slaviansk on Saturday and Kiev prepared troops to tackle what it called an "act of aggression by Russia", pushing the conflict between the neighbours into a dangerous new phase. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY)