Lt. Col. Joe Gross, commander of the Special Tactics Training Squadron, speaks with Secretary of the Air Force Heather Wilson at Hurlburt Field, Florida, May 3, 2018. Wilson learned about the arduous training Special Tactics operators go through while attending the STTS, where they become combat mission ready before being assigned to an operational unit. (U.S. Air Force photo by Staff Sgt. Victor J. Caputo)