Joint tactical air controllers from Detachment 1, 82nd Expeditionary Rescue Squadron, perform range calculations and control fire during a live-fire training exercise with the 303rd Expeditionary Rescue Squadron at the Arta range, Djibouti, June 22, 2015. The 303rd ERQS conducts training events working with enabling units to maintain proficiency while deployed in support of humanitarian aid and contingency operations in the Combined Joint Task Force Horn of Africa area of responsibility. (U.S. Air Force Photo by Staff Sgt. Gregory Brook/Released)image cropped to enhance subject