chiefs
Col. Mike Minihan, 19th Airlift Wing commander, and the chiefs of Little Rock Air Force Base, Ark., congratulate Senior Master Sgt. Samuel Fredrick, 61st Airlift Squadron loadmaster superintendent, Senior Master Sgt. Curtis Crigger, 19th Security Forces Squadron logistics superintendent, Senior Master Sgt. Joseph Vinsant, 19th Force Support Squadron chief of manpower and organization, for their promotion to chief master sergeant 2, 2011. Chief master sergeant is the most prestigious enlisted rank in the Air Force, with only one percent of the enlisted force privileged to wear it. (U.S. Air Force photo by Airman 1st Class Kaylee Clark)