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Defense Secretary Jim Mattis walks with service members outside a building.

Centcom Visit

Defense Secretary Jim Mattis and Army Command Sgt. Maj. John Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, visit U.S. Central Command at MacDill Air Force Base in Tampa, Fla., Oct. 12, 2017. DoD photo by Army Sgt. Amber I. Smith

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