Retired Dutch general Patrick Cammaert (front, 5th R), who is leading a joint committee to monitor the implementation of the UN-backed cease-fire, is seen at 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)