190709-N-CZ893-1043 PACIFIC OCEAN (July 9, 2019) Gas Turbine Systems Technician (Electrical) 1st Class Kenton McPherson, front, from Chicago, and Chief Fire Controlman Ross Warshaw, from Palm Beach, Fla., calibrate a gauge for an ammo magazine sprinkler system aboard the Arleigh Burke-class destroyer USS Rafael Peralta (DDG 115). Rafael Peralta is underway conducting routine operations in the eastern Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jason Isaacs/Released)