YEMEN-CONFLICT Yemeni fighters of the Popular Resistance Committees, supporting forces loyal to Yemen's Saudi-backed President Abedrabbo Mansour Hadi, patrol a street in the southern port city of Aden on November 1, 2015. Gunmen killed two security officers in separate drive-by shootings in of Aden, where jihadists are becoming increasingly active, security officials said. AFP PHOTO / SALEH AL-OBEIDI (Photo credit should read SALEH AL-OBEIDI/AFP/Getty Images)