U.S. Air Force Chief Master Sgt. Daniel Stein, 17th Training Group superintendent, presents the 315th Training Squadron Officer Student of the Month award for May 2016 to 1st Lt. Cassandra Dunn in Brandenburg Hall on Goodfellow Air Force Base, Texas, June 3, 2016. (U.S. Air Force photo by Airman 1st Class Caelynn Ferguson/Released)