171012-N-FP878-039 ATLANTIC OCEAN (Oct. 12, 2017) Machinist’s Mate 3rd Class James Dyer, center, from Scott City, Kan., gives Cameroonian sailors Ensign Tchinde Etienne and Lt. j.g. John Mendoua a tour of engineering spaces aboard the Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75), Oct. 12, 2017. Donald Cook, forward-deployed to Rota, Spain, is on its sixth patrol in the U.S. 6th Fleet area of operations in support of regional allies and partners, and U.S. national security interests in Europe. (U.S. Navy photo by Mass Communication Specialist 1st Class Theron J. Godbold/Released)