Maj. Gen. Mark R. Kraus, Air National Guard assistant to the commander, United States Air Forces Central Command, addresses an audience of friends, family and co-workers during his retirement ceremony at the Kentucky Air National Guard Base in Louisville, Ky., on June 12, 2016. Kraus served for more than 43 years in the United States Air Force and Air National Guard. (U.S. Air National Guard photo by Master Sgt. Phil Speck)