U.S. Air Force Gen. Hawk Carlisle, commander of Air Combat Command, presents his coin to Col. David Garner, Feb. 2 at the 601st Air Operations Center, Tyndall Air Force Base, Fla., in appreciation of Garner's 25 years of military service. Garner, who plans to retire, most recently served as chief of combat operations in the 601st AOC. Throughout his tenure at the 601st AOC, he also served in several other positions, to include chief of the AOC's Combat Operations Division, the Combat Plans Division, and the former Southeast Air Defense Sector’s Mission Support Division. (U.S. Air Force photo by Capt. Jared Scott/Released)