U.S. Air Force Lt. Gen. Maryanne Miller (right), commander of the Air Force Reserve Command, gives a command coin for excellence to Staff Sgt. David Clark, section floor chief assigned to the 379th Expeditionary Maintenance Squadron, at Al Udeid Air Base, Qatar, Dec. 12, 2017. Miller visited deployed Air Force Reservists at AUAB during a trip to the U.S. Central Command area of responsibility. (U.S. Air National Guard photo by Master Sgt. Phil Speck)