U.S. Marines with Special Purpose Marine Air-Ground Task Force 24 show Peruvian marines how to fire a shoulder-launched multipurpose assault weapon in Salinas, Peru, on July 10, 2010. The U.S. Marines are embarked aboard the transport dock ship USS New Orleans (LPD 18) in support of Partnership of the Americas/Southern Exchange, a combined amphibious exercise with maritime forces from Argentina, Mexico, Peru, Brazil, Uruguay and Colombia.