U.S. Air Force Senior Master Sgt. Staci Kasischke (left), and Master Sgt. Jina Callahan, 633d Force Support Squadron development advisors, check a bingo card during a Junior Enlisted Foundations 300 course ice-breaker activity at Joint Base Langley-Eustis, Virginia, April 16, 2026. Development advisors oversee Foundations courses while other non-commissioned officers and senior NCOs facilitate classes and specific lessons.