A runner makes her way across the Grand Bara Desert during the Annual Grand Bara 15K race Dec. 17, 2015, in Djibouti.
More than 1,500 service members and civilians representing France, Djibouti, U.S., Japan, Germany and others participated in the race. (U.S. Air Force photo by Tech. Sgt. Dan DeCook). Original public domain image from Flickr