Smoke billows as supporters of exiled Yemeni President Abedrabbo Mansour Hadi clash with Shiite Huthi rebels on the outskirts of the Taez province, on May 3, 2015. The Saudi-led coalition launched air strikes against the Iran-backed Huthi rebels and their allies on March 26 after they seized control of large parts of the country and advanced on Aden, where President Abedrabbo Mansour Hadi had taken refuge. AFP PHOTO / TAHA SALEH