Fighters of the Shiite Houthi group patrol outside the presidential palace where the revolutionary committee held a meeting in Sanaa, Yemen, Feb. 16, 2015. The revolutionary committee led by the Houthi group called on the United Nations to respect the Yemeni people's will and sovereignty after a meeting in Sanaa, one day after the UN Security Council approved a resolution that deplores Houthi takeover of power in Yemen.(Xinhua/Hani Ali)