Jay Wadsworth, a Code 4 Concepts instructor with Progressive F.O.R.C.E. Concepts, demonstrates how to engage a combatant with your sidearm while on your back defending yourself July 11, 2018 at the Middletown High School in Middletown, Pennsylvania. Airmen from the 193rd Special Operations Security Forces Squadron, Pennsylvania Air National Guard, completed a three-day course on defensive tactics taught by PFC Training. (U.S. Air National Guard photo by Staff Sgt. Tony Harp/Released)