U.S. Marine Corps Gunnery Sgt. Jonathan Wetzold, right, pets a military working dog during a break on an escort mission near Patrol Base Maryland in Helmand province, Afghanistan, Oct. 25, 2011. Wetzold is assigned to the personal security detachment for the 1st Battalion, 6th Marine Regiment. U.S. Marine Corps Gunnery Sgt. Jonathan Wetzold, right, pets a military working dog during a break on an escort mission near Patrol Base Maryland in Helmand province, Afghanistan, Oct. 25, 2011. Wetzold is assigned to the personal security detachment for the 1st Battalion, 6th Marine Regiment. SHARE: Download: Full Size (4.7 MB) Tags: photo essays Credit: VIRIN: 542016-N-MFC66-114.jpg Photo Gallery