PACIFIC OCEAN (July 18, 2013) -- A Sea Sparrow (RIM-7P) missile is launched from the amphibious assault ship USS Boxer (LHD 4) during a missile firing exercise. Boxer is underway off the coast of Southern California conducting a composite training unit exercise (COMPTUEX). COMPTUEX is a scenario-driven exercise aimed at integrating the ships of the Boxer Amphibious Ready Group through a series of live training events. (U.S. Navy photo by Mass Communications Specialist 2nd Class Kenan O'Connor)