European Union foreign policy chief Federica Mogherini listens to European Council President Donald Tusk (R) during a European Union leaders summit in Brussels December 18, 2014. REUTERS/Francois ... more 
European Union foreign policy chief Federica Mogherini listens to European Council President Donald Tusk (R) during a European Union leaders summit in Brussels December 18, 2014. REUTERS/Francois Lenoir less 
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Reuters | Photo By FRANCOIS LENOIR / Reuters
Thu, Dec 18, 2014 5:32 PM EST