Firing Downrange Marines fire weapons at targets during a simulated attack with CS gas, also known as tear gas, during live-fire training as part of Exercise Koolendong 16 at Bradshaw Field Training Area, Northern Territory, Australia, Aug. 18, 2016. Marine Corps photo by Sgt. Sarah Anderson SHARE: Download: Full Size (2.15 MB) Credit: Sgt. Sarah Anderson VIRIN: 160818-M-LV138-331A.JPG Photo Gallery