U.S. Air Force Col. John J. Allen Jr., 633rd Air Base Wing commander, presents Chief Master Sgt. Trae King, 633 ABW command chief, a letter from President Barack Obama during her retirement ceremony at Langley Air Force Base, Va., Jan. 23, 2015. During her 3-year tour at Langley, King advised two commanders and mentored more than 6,000 Service members. (U.S. Air Force photo by Staff Sgt. Antoinette Gibson/Released)