Deterring Enemies Marines fire a nonexplosive illumination round from an 81 mm mortar to deter enemy activity at Camp Shorserack, Afghanistan, July 15, 2017. The Marines are assigned to Task Force Southwest, which helped Afghan forces clear insurgents from the Nawa district center. Marine Corps photo by Sgt. Lucas Hopkins SHARE: Download: Full Size (2.29 MB) Credit: Sgt. Lucas Hopkins VIRIN: 170715-M-TR086-109C.JPG Photo Gallery