U.S. Navy Damage Controlman Fireman Elizabeth Mendez checks a sprinkler head as part of a test of the countermeasure washdown system aboard the amphibious dock landing ship USS Rushmore (LSD 47) July 26, 2014, in the Pacific Ocean during Rim of the Pacific (RIMPAC) 2014. RIMPAC is a U.S. Pacific Fleet-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation on the security of the world's oceans. (U.S. Navy photo by Mass Communication Specialist 2nd Class Amanda R. Gray/Released)