160401-N-DQ503-089 ATLANTIC OCEAN (April 1, 2016) Damage Controlman 2nd Class Roger Hedgpeth, right, instructs Damage Controlman Fireman Joseph Perez on how to use a naval firefighter thermal imager (NFTI) aboard the guided-missile destroyer USS Roosevelt (DDG 80). Roosevelt is underway conducting Composite Training Unit Exercise (COMPTUEX) with the Eisenhower Carrier Strike Group in preparation for a future deployment. (U.S. Navy Photo by Mass Communication Specialist 3rd Class Taylor A. Elberg/Released)