Guardian Angels fly over "Sin City"
A 920th Rescue Wing HH-60 Pave Hawk helicopter takes off from Nellis Air Force Base July 22, 2015 during RED FLAG, an aerial combat exercise conducted three to four times annually. The 920th RQW participated in RED FLAG July 13-31 with more than 120 reservists and 3 HH-60s. (U.S. Air Force photo/2nd Lt. Anna-Marie Wyant)