U.S Air Force Col. Thomas McNurlin accepts responsibility of the 924th
Fighter Group, from Col. Kurt Gallegos, 944th Fighter Wing commander, during the Change of Command Ceremony at Davis-Monthan Air Force Base, Ariz., June 8, 2014. The passing of the guideon is a traditional military custom signifying the transfer of command, thereby signifying Col. McNurlin new role as 924th commander. (U.S. Air Force photo/Maj. Elizabeth Magnusson)