ANDERSEN AIR FORCE BASE, Guam -- Air Force Staff Sgt. David Bates, Armed Forces Blood Bank Center, prepares to draw blood from Staff Sgt. Chalmers, 36th Civil Engineer Squadron firefighter, during the blood drive at the Chapel One Annex March 3. The Armed Forces Blood Bank Center is a joint service operation, with all branches of the military in its program. (U.S. Air Force photo by Airman Carissa Wolff)