Navy Capt. Frank Bradley, executive assistant to Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, tours the 49th Missile Defense Battalion at Fort Greeley, Alaska, Aug. 19, 2017. The soldiers guard the ground-based interceptor missiles at the base. (DOD photo by U.S. Navy Petty Officer 1st Class Dominique A. Pineiro)

Issue Brief: GMD Modernization

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