U.S. Marine Corps Staff Sgt. David Denseley, center, helps Afghan mortarmen clean the bore of a 60mm mortar at a mortar range near Camp Shorabak in Afghanistan's Helmand province, May 4, 2013. Denseley is assigned to the Regional Corps Battle School. U.S. Marine Corps Staff Sgt. David Denseley, center, helps Afghan mortarmen clean the bore of a 60mm mortar at a mortar range near Camp Shorabak in Afghanistan's Helmand province, May 4, 2013. Denseley is assigned to the Regional Corps Battle School. SHARE: Download: Full Size (17.91 MB) Tags: Photo Essays, Week In Photos, Week In Photos Credit: VIRIN: 720029-J-ZAQ71-143.jpg Photo Gallery