Luke Thunderbolts donate blood for troops
Allen Dennis, Armed Services Blood Program laboratory technician (Left), issues a blood donor bag to Airman 1st Class Brian Gentzyel, 56th Operation Support Squadron airfield systems technician, at Luke Air Force Base, Ariz., Dec. 7, 2017. The bag was issued after Gentzyel passed the interview section. (U.S. Air Force photo/Senior Airman Pedro Mota)