U.S. Marine Corps Lance Cpl. Ruben Andrade performs a communications check in an AAV-7A1 amphibious assault vehicle in the well deck of the amphibious transport dock ship USS New Orleans (LPD 18) while underway in the Pacific Ocean on June 28, 2010. Andrade is from 4th Platoon, Charlie Company, 3rd Assault Amphibian Battalion, 1st Marine Division, which is embarked on the New Orleans 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.