Mastering the jump
U.S. Airmen prepare equipment during the Military Freefall Jumpmaster Course at Davis-Monthan Air Force Base, Ariz., June 28, 2016. Students vary from tactical air control party specialists, combat controllers, pararescuemen, and survival, evasion, resistance and escape specialists from all different commands. (U.S. Air Force photo by Airman Nathan H. Barbour/Released)