Days of protest in Ukraine (Reuters/Gleb Garanich)

Protesters try to break through police lines near the presidential administration building during a rally held by supporters of EU integration in Kiev, on December 1, 2013. Ukrainian opposition leaders called on Sunday for President Viktor Yanukovich and his government to resign at a rally of about 350,000 people, the biggest protest in the capital Kiev since the "Orange Revolution" of nine years ago. (Reuters/Gleb Garanich)

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