U.S. Army Spc. Nat Tan, Dwight D. Eisenhower Army Medical Center Bravo Company lab specialist, prepares to donate blood during an Armed Services Blood Program blood drive at Shaw Air Force Base, S.C., Nov. 18, 2015. The ASBP provides quality blood products and services for all recipients in both peacetime and war. The service is provided to all branches of the military to aid in war time efforts. (U.S. Air Force photo by Airman 1st Class Christopher Maldonado)