181029-N-GC639-1059 PACIFIC OCEAN (Oct. 29, 2018) Gas Turbine System Technician (Electrical) 2nd Class Marcos Chapa, from Sanger, California, provides switchboard training to Sailors aboard the Arleigh Burke-class guided-missile destroyer USS Spruance (DDG 111). Spruance is currently conducting routine operations as part of Carrier Strike Group (CSG) 3 in the U.S. 3rd Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan D. McLearnon/Released)