Tech Sgt. Hernan Daffara, Jungle Training Operations Course student from the 644th Combat Communications Squadron, secures a night vision monocular to his helmet during an air assault exercise June 15, 2016, at Andersen Air Force Base, Guam. Conducted by the U.S. Army 25th Infantry Division's Lightning Academy Jungle Operations Training Center from Schofield Barracks, Hawaii, and supported by 736th Security Forces Squadron Commando Warrior cadre, students prepared a simulated patient for medical evacuation. During the course, they also learned survival skills, including land navigation and evasion techniques. (U.S. Air Force photo by Tech. Sgt. Richard Ebensberger)