U.S. Marine Corps Cpl. Alex Roberts makes final adjustments to his M240B machine gun in the turret of his mine-resistant, ambush-protected vehicle before conducting a combat logistics patrol on Camp Leatherneck in Afghanistan's Helmand province, July 14, 2014. Roberts, a turret gunner and weapons noncommissioned officer, is assigned to Combat Logistics Battalion 7. U.S. Marine Corps Cpl. Alex Roberts makes final adjustments to his M240B machine gun in the turret of his mine-resistant, ambush-protected vehicle before conducting a combat logistics patrol on Camp Leatherneck in Afghanistan's Helmand province, July 14, 2014. Roberts, a turret gunner and weapons noncommissioned officer, is assigned to Combat Logistics Battalion 7. SHARE: Download: Full Size (1.98 MB) Tags: Photo Essays Credit: VIRIN: 547446-E-LQZ86-032.jpg Photo Gallery