Airman leaves diamond-hard legacy
Senior Master Sgt. Keith Custer, 86th Maintenance Squadron first sergeant, speaks with an Airman Aug. 8, 2014, at Ramstein Air Base, Germany. Custer has 10 years of first sergeant experience between 10 different units. Military members make up less than one percent of the population, and first sergeants make up an even smaller percentage. (U.S. Air Force photo/Airman Larissa Greatwood)