Master Sgt. Jason Walls, 436th Medical Operations Squadron family health flight chief, teaches CPR to a class of Junior ROTC cadets during the Delaware Cadet Leadership Course June 21, 2017, at the Delaware National Guard training site at Bethany Beach, Del. Several Airmen from Dover Air Force Base attended the event to assist with the cadets’ training. (U.S. Air Force photo by Staff Sgt. Jared Duhon)