Lance Cpl. Bradley J. Hubbard, a chemical biological riadiocative defense specalist with 1st Battalion, 1st Marine Regiment, stands on the firing line after a live fire range August 18, 2016, at Bradshaw Field Training Area, Northern Territory, Australia. The range was the final training evolution of Exercise Koolendong 16, a trilateral exercise between the U.S. Marine Corps, Australian Defence Force and French Armed Forces New Caledonia. Marines held a defensive position while engaging targets and working through the CS gas, which simulated a chemical attack. (U.S. Marine Corps photo by Sgt. Sarah Anderson)