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A malnourished child receives medical treatment at a hospital in Sanaa, Yemen, on Jan. 15, 2018. More than 3 million children have been born in Yemen since conflict escalated in March 2015, and they've since faced violence, displacement, disease, poverty, under-nutrition not to mention lack of access to water, health care and education, according to a UNICEF report released Tuesday. (Xinhua/Mohammed Mohammed)