Security Breach New Jersey Air National Guardsmen hold a security position before attempting to breach a door during an exercise at Warren Grove Gunnery Range, N.J., March 8, 2017. Air National Guard photo by Master Sgt. Matt Hecht SHARE: Download: Full Size (2.68 MB) Tags: Exercises, Guard, Air Force, training, Airmen Credit: Master Sgt. Matt Hecht VIRIN: 170308-Z-NI803-392A.JPG Photo Gallery