Commanders congratulate chief selects
Senior Master Sgt. Sara Hill, member of the National Air and Space Intelligence Center, gives a speech to the chiefs of Wright-Patterson Air Force Base, Ohio, after finding out she was selected for the rank of chief master sergeant, Thursday, Dec. 17, 2015. By congressional mandate, only 1 percent of the enlisted force obtains the rank of chief master sergeant. (U.S Air Force photo by Senior Airman Samuel Earick)