A 733rd Security Forces Squadron officer keeps watch as other officers clear rooms during a school violence exercise at Joint Base Langley-Eustis, Virginia, Aug. 23, 2018. Fort Eustis and Newport News Public School officials practiced coordinated response procedures in the event of a real-world emergency affecting Joint Base Langley-Eustis and General Stanford Elementary School. (U.S. Air Force photo by Senior Airman Tristan Biese)