Two security forces specialists from the 193rd Special Operations Security Forces Squadron, Pennsylvania Air National Guard, engage against each other during armed vehicle defense training July 26, 2018 in Annville, Pennsylvania. During the final day of a three-day armed vehicle defense course, 193rd SOSFS Airmen utilized Simunition rounds to conduct realistic force-on-force scenarios meant to simulate engaging a threat by shooting from inside or around a vehicle. (U.S. Air National Guard photo by Staff Sgt. Tony Harp/Released)