Members of the Central Marianas Port Authority receive a Combat Lifesaver Course from Navy Chief Petty Officer Johnathan Akers, independent duty corpsman, Marine Air Control Group 18, during Exercise Valiant Shield 16, at Tinian International Airport, Tinian, Sept. 13, 2016. Valiant Shield is a biennial Air Force, Navy and Marine Corps exercise held in Guam, focusing on real-world proficiency in sustaining joint forces at sea, in the air, on land and in cyberspace. ( Marine Corps photo by Lance Cpl. Makenzie Fallon)

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Keywords: .., cls, counter, forces, ftx, integrated, joint, macg-18, marines, operational, operations, readiness, sailors, shield, training, usfj, usmc, usn, valiant, vs16