U.S. Air Force Senior Master Sgt. Jack Bartleson salutes Maj. Warren Crabtree, 707th Maintenance Squadron commander, after being presented the Air Force Meritorious Service Medal during his retirement ceremony on June 7, 2014, Barksdale Air Force Base, La. Bartleson, a munitions specialist assigned to the 307th Maintenance Squadron is retiring from the Air Force Reserve after 30 years of service. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)