U.S. Marine Corps Staff Sgt. Nentl with 4th Platoon, Company C, 3rd Assault Amphibian Battalion, 1st Marine Division, spends his July 4 repairing the transmission of a Amphibious Assault Vehicle on a beach in Ancon, Peru, on July 4. The transport dock ship USS New Orleans is deployed in support of operation Partnership of the Americas/Southern Exchange, a combined amphibious exercise designed to enhance cooperative partnerships with maritime forces from Argentina, Mexico, Peru, Brazil, Uruguay and Colombia.