Heavily armed Yemeni fighters loyal to Yemeni President Abedrabbo Mansour Hadi stand guard in front of the governorate building on March 18, 2015, in the southern city of Aden. Security in Aden resembles a time-bomb as forces loyal to Hadi, and others opposing him, share control over the southern city that shelters the embattled leader. AFP PHOTO / STR (Photo credit should read STR/AFP/Getty Images)
