U.S. Air Force Staff Sgt. Chloe Rainey, 633rd Medical Group assistant aerospace medical service apprentice to phase-two course advisor, teaches participants during the Self-Aid and Buddy Care hands-on class at Langley Air Force Base, Va., Oct. 18, 2013. After initial SABC training, Airmen are required to complete annual or pre-deployment training. (U.S. Air Force photo by Airman 1st Class Kimberly Nagle/Released)