2nd Medical Group NCO trades stripes for bars
Staff Sgt. Brandon Longstreet, 2nd Medical Group public health technician, takes the Air Force oath of office prior to his direct commission to Medical Service Corps as a first lieutenant during a commissioning ceremony at Barksdale Air Force Base, La., Aug. 14, 2015. MSC provides leadership, operational and administrative support, and administers the provision of medical assistance to Airmen and their families. (U.S. Air Force Photo/Airman 1st Class Luke Hill)