Here to help: First Sergeants
Master Sgt. Dierdre Mister, 36th Airlift Squadron first sergeant, poses for a photo at Yokota Air Base, Japan, May 17, 2016. As a first sergeant, Mister works to ensure that her commander has a mission-ready force by maintaining unit morale, health and welfare. (U.S. Air Force photo by Senior Airman David C. Danford/Released)