Airman 1st Class Bin Ma, a 20th Comptroller Squadron financial services technician, works after hours reviewing finances for Airmen at Shaw Air Force Base, S.C., July 31, 2015. Ma is applying to commission in the Medical Service Corps for a position in hospital administration which is in charge of resources, personnel and money, to keep clinics running. (U.S. Air Force photo/Senior Airman Michael Cossaboom)