Women march during an anti-Houthi demonstration in Sanaa March 11, 2015. Yemen has been in turmoil since protests in 2011 forced President Ali Abdullah Saleh to step down. The turmoil worsened in September when the Shi'ite Houthi captured Sanaa, Yemen's capital, a move that Gulf states condemned as a coup. The banner (back) reads: "Freedom for the detainees." REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST CONFLICT)