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.