Air Force Cadet Everett Joiner prepares smoke grenades for the U.S. Air Force Wings of Blue parachute team’s performance at the Sheppard Air Force Base, Texas, 75th Anniversary Air Show Celebration, Sept. 17, 2016. The Wings of Blue runs the Air Force’s basic freefall parachuting course which is the only certified first-jump program in the world where students can make their first freefall jump without assistance. (U.S. Air Force photo by Senior Airman Kyle E. Gese)