U.S. Navy Gunner's Mate 3rd Class Lupe Ramos, left, teaches Midshipman 2nd Class Sam Peterson how to use an M2 HB .50-caliber heavy machine gun during weapons familiarization aboard the amphibious assault ship USS Peleliu under way in the Pacific Ocean June 28, 2012. Midshipmen embarked aboard Peleliu are undergoing pacific training for midshipmen, designed for midshipmen to experience shipboard life prior to graduation.