A U.S. Marine crosses a river during jungle warfare training. A U.S. Marine with 4th Platoon, Charlie Company, 3rd Assault Amphibian Battalion, 1st Marine Division crosses a river during jungle warfare training in Colombia on Aug. 2, 2010. The Marine is deployed to support operation Partnership of the Americas/Southern Exchange, a combined amphibious exercise designed to enhance cooperative partnerships with maritime forces from nine other nations. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 246454-S-DNC43-416.jpg Photo Gallery