U.S. Air Force Chief Master Sgts. Mark Hurst, 633rd Air Base Wing command chief, left, and Henry Hayes, Headquarters Air Combat Command first sergeant, speak during a first sergeant symposium at Langley Air Force Base, Va., Sept. 15, 2015. The two spoke to a crowd of noncommissioned officers and senior noncommissioned officers about the importance of Air Force first sergeants. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)

A U.S. Air Force technical sergeant directs a question to Chief Master Sgt. Henry Hayes, Headquarters Air Combat Command first sergeant, during a first sergeant symposium at Langley Air Force Base, Va., Sept. 15, 2015. Both Hayes and Chief Master Sgt. Mark Hurst, 633rd Air Base Wing command chief, answered questions to start the four-day symposium. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)

U.S. Air Force first sergeants listen to attendees during a First Sergeant's Symposium at Langley Air Force Base, Va., Sept. 15, 2015. The symposium aimed to teach noncommissioned officers and senior noncommissioned officers the importance and responsibilities of being an Air Force first sergeant. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)