Petty Officer 1st Class Allen Lunn, a line coach, gives Seaman Brittany Koval instruction on how to fire an M-16 service rifle during a live-fire gun qualification exercise aboard the amphibious transport dock ship USS New Orleans (LPD 18) in the Arabian Sea on March 8, 2012. The New Orleans and embarked Marines assigned to the 11th Marine Expeditionary Unit are deployed as part of the Makin Island Amphibious Ready Group, supporting maritime security operations and theater security cooperation efforts in the US 5th Fleet area of responsibility. (DoD photo by Petty Officer 2nd Class Dominique Pineiro, US Navy/Released)

[Image courtesy of the US Navy Website.]