A Marine fires his M4 rifle during a live fire weapons exercise on the flight deck of amphibious transport dock ship USS Denver (LPD 9). Denver is on patrol with the Bonhomme Richard Amphibious Ready Group and, with the embarked 31st Marine Expeditionary Unit, is currently conducting routine joint-force operations in the U.S. 7th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Christopher Lindahl/Released)