Staff Sgt. Cinthia Swartzlander, 30th Security Forces Squadron patrolman, provides emergency aid to a simulated victim during an active shooter exercise Aug. 7, 2019, at Vandenberg Air Force Base, Calif. Since readiness is a key component within the military, exercises are conducted to prepare members on how to effectively and efficiently respond to a real-world crisis. (U.S. Air Force photo by Staff Sgt. Brittany E. N. Murphy)