Herve Ladsous (C, front), United Nations Under-Secretary-General for Peacekeeping Operations, poses with military and police personnel awarded the UN medal after a service medal ceremony on International Day of UN Peacekeepers at the UN headquarters in New York, May 29, 2015. UN Secretary-General Ban Ki-moon on Friday led the world body in honoring peacekeepers who died in UN peacekeeping operations worldwide, while saluting those who are serving their mandates in the world's most dangerous places. (Xinhua/Li Muzi)
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