A man and his children pose for photos standing by an image of the founder of the Shi'ite Houthi movement, Hussein al-Houthi, made of photos of slain Houthi fighters killed during the recent armed conflicts, at an exhibition commemorating them in Sanaa March 5, 2015. Yemen has plunged deeper into turmoil since the Iranian-backed Shi'ite Muslim Houthi group seized control of the capital in September last year. REUTERS/Khald Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST)