Anti-government protesters clash with riot police in Kiev's Independence Square, the epicenter of the country's current unrest, in Ukraine, Thursday, Feb. 20, 2014. Ukraine's protest leaders and the president they aim to oust called a truce Wednesday, just hours after the military raised fears of a widespread crackdown with a vow to defeat "terrorists" responsible for seizing weapons and burning down buildings. (AP Photo/Sergei Chuzavkov)