European Union foreign policy chief Federica Mogherini (L) prepares to attend the opening session of the 23rd annual meeting of Organization for Security and Cooperation in Europe (OSCE) Ministerial Council in Hamburg, northern Germany, Dec. 8, 2016. The OSCE Ministerial Council convened Thursday its 23rd annual meeting to discuss security issues including conflicts in Ukraine and Syria. (Xinhua/Shan Yuqi)
