U.S. Air Force Chief Master Sgt. Emmette Bush, 1st Fighter Wing command chief, from left, Chief Master Sgt. Mark Hurst, 633rd Air Base Wing command chief, and Chief Master Sgt. John Thompson, 480th Intelligence, Surveillance and Reconnaissance command chief, speak to technical sergeants and above about the roles of being a first sergeant at Langley Air Force Base, Va., May 8, 2015. According to the chiefs, being a first sergeant is a special duty assignment job that requires advisement to the commander on issues related to the enlisted force. (U.S. Air Force photo by Senior Airman Breonna Veal/Released)