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Soldiers guard the gate of a building where retired Dutch general Patrick Cammaert, who is leading a joint committee to monitor the implementation of the UN-backed cease-fire, holds a meeting with Houthi representatives, in Hodeidah, Yemen, on Dec. 24, 2018. The head of the United Nations team tasked with monitoring a fragile cease-fire between the Yemeni warring sides made his first visit to the strategic seaport of Hodeidah on Monday, a government official told Xinhua. (Xinhua/Hasan Bamashmous)