Mortar Adjustment Marines adjust an 81mm mortar to improve defensive posture during Operation Maiwand Six in Helmand province, Afghanistan, Sept. 22, 2017. Marine Corps photo by Sgt. Lucas Hopkins SHARE: Download: Full Size (1.85 MB) Tags: Marines, operation freedom, afghanistan, training, Marine Corps Credit: Sgt. Lucas Hopkins VIRIN: 170922-M-TR086-019A.JPG Photo Gallery