A boy holds a poster of his father who was killed in the war during a rally in Sanaa, Yemen, on Oct. 20, 2016. Families of victims of the war staged a rally on the first day of the Humanitarian ceasefire in Sanaa, calling for an end of the ongoing war that has deteriorated the situation in Yemen economically and politically since March of 2015. A 72-hour humanitarian cease-fire brokered by the United Nations went into effect on Wednesday midnight, but many Yemeni residents reported airstrikes in some war-torn areas. (Xinhua/Mohammed Mohammed)