Staff Sgt. Cody Kraft and Senior Airman Isaiah Aguilar, 30th Security Forces Squadron patrolmen, sweep a building during an active shooter exercise Aug. 7, 2019, at Vandenberg Air Force Base, Calif. During the exercise, 30th SFS members were evaluated on their ability to mitigate threats, sweep buildings, and provide first-aid to victims in the event of a real-world situation. (U.S. Air Force photo by Staff Sgt. Brittany E. N. Murphy)