Second Lt. Kinder McCullough, 435th Fighter Training Squadron instructor pilot student, adjusts her mask and helmet during a pre-flight checklist before a training flight April 8, 2015 at Joint Base San Antonio-Randolph, Texas. The 435th Fighter Training Squadron, with a heritage that dates back to the World War II-era 435th Fighter Squadron, is the only unit at JBSA-Randolph that trains the Air Force’s newest aviators to become fighter pilots. The squadron’s two-fold mission is to forge up to 150 fighter pilots and weapon systems officers annually – including international students – and to mold experienced fighter pilots and WSOs into instructors for Air Education and Training Command’s Introduction to Fighter Fundamentals courses. (U.S. Air Force photo by Joel Martinez/ Released)