Airmen assigned to 432nd Aircraft Maintenance Squadron perform pre and post-flight operations on MQ-9 Reapers in support of Red Flag 16-3 July 20, 2016, at Creech Air Force Base, Nevada. Red Flag is an exercise held four times a year and tests participants in various combat training scenarios. (U.S. Air Force photo by Airman 1st Class Kristan Campbell/Released)