Yemen's Houthi followers shout slogans during a rally to celebrate and support the UN-brokered cease-fire in Hodeidah, in Sanaa, Yemen, on Dec. 19, 2018. The cease-fire agreement reached between the Yemeni government and Houthi rebels during the UN-sponsored peace talks in Sweden went into effect on Dec. 17. The cease-fire covers the strategic Red Sea port city of Hodeidah along with its seaports which are still controlled by the Houthis. (Xinhua/Mohammed Mohammed)