Defenders drill to eliminate active shooter

U.S. Air Force Staff Sgt. Ilya Makarenko, 20th Security Forces Squadron (SFS) installation patrolman, left, and Senior Airman Anthony Greene, 20th SFS installation patrolman, right, guard Airman 1st Class Tyler Crawford, 20th SFS installation entry point controller, during an exercise at Shaw Air Force Base, S.C., Jan. 31, 2018. Makarenko and Greene apprehended Crawford, but could not move him until the entire building was secured. (U.S. Air Force photo by Airman 1st Class Benjamin Ingold)

PHOTO BY: Airman 1st Class Benjamin Ingold
VIRIN: 180131-F-CD693-1022.JPG
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