Illumination Round Marines fire a non-explosive illumination round using an 81mm mortar to deter enemy activity during Operation Maiwand Six in Helmand province, Afghanistan, Sept. 23, 2017. Marine Corps photo by Sgt. Lucas Hopkins SHARE: Download: Full Size (1.7 MB) Tags: marines, operation freedom, afghanistan, training, marine corps Credit: Sgt. Lucas Hopkins VIRIN: 170923-M-TR086-063A.JPG Photo Gallery