Protesters hold posters against Houthi Shiite rebels who hold the capital, Sanna, amid a power vacuum as they hold a demonstration in Sanaa on Saturday, Jan. 24, 2015. Some 20,000 marched Saturday across the capital, where demonstrators converged on the house of President Abed Rabbo Mansour Hadi, who resigned Thursday along with his Cabinet. Arabic writing on the banner at right reads, “Militias do not build a country.” (AP Photo/Hani Mohammed)