A man wearing Ukrainian national flag walks past Ukrainian riot police as they block the road next to Pro-European Union activists gathered on the Independence Square in Kiev, Ukraine, Monday, Dec. 9, 2013. The policemen, wearing helmets and holding shields, formed a chain across Kiev’s main street outside the city building. Organizers called on protesters to vacate the city hall and the other building which the opposition had used as its headquarters. (AP Photo/Sergei Grits)
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