U.S. Air Force Staff Sgt. Joseph Lindgren, left, and Senior Airman Trevern Morris, right, 52nd Medical Group dental technicians, perform "buddy checks" during an exercise at Spangdahlem Air Base, Germany, Nov. 17, 2020. "Buddy checks" help ensure personnel are protected from any potentially harmful airborne substances. (U.S. Air Force photo by Senior Airman Chanceler Nardone)
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