A policeman, center, tries to stop Ukrainian protesters as they seize police headquarters in Lviv, western Ukraine, early Wednesday, February 19, 2014. The violence on Tuesday was the worst in nearly three months of anti-government protests that have paralyzed Ukraine's capital, Kiev, in a struggle over the identity of a nation divided in loyalties between Russia and the West, and the worst in the country's post-Soviet history. (Photo by Pavlo Palamarchuk/AP Photo)
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