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Yemeni tribesmen from the Popular Resistance Committees, supporting forces loyal to Yemen's Saudi-backed President Abedrabbo Mansour Hadi, check the damage at The National Museum after it was hit by a mortar shell during clashes in the flashpoint southwestern city of Taez, on February 2, 2016. / AFP / AHMAD AL-BASHA (Photo credit should read AHMAD AL-BASHA/AFP/Getty Images)

Yemeni tribesmen from the Popular Resistance Committees, supporting forces loyal to Yemen's Saudi-backed President Abedrabbo Mansour Hadi, check the damage at The National Museum after it was hit by a mortar shell during clashes in the flashpoint southwestern city of Taez, on February 2, 2016.  / AFP / AHMAD AL-BASHA        (Photo credit should read AHMAD AL-BASHA/AFP/Getty Images)