FIELD PATROL U.S. Marine Cpl. Matthew Davis, right, and Afghan policemen patrol through a field after searching compounds for possible insurgent material during Operation Zema Parma Sar Tera in the Garmsir district of Afghanistan's Helmand province, April 14, 2012. Davis is a squad leader assigned to Kilo Company, 3rd Battalion, 3rd Marine Regiment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 883209-K-BBY67-596.jpg Photo Gallery