Fireman Apprentice Adolfo Madrid from San Antonio, Texas, uses a thermal imaging camera (TIC) during a damage control drill aboard the Arleigh Burke-class guided-missile destroyer USS Ralph Johnson (DDG 114) while operating in the Indian Ocean, July 8. Ralph Johnson is forward deployed and assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest DESRON and the U.S. 7th fleet’s principal surface force.
