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U.S. DepartmentofDefense

Defense Secretary Jim Mattis speaks from a podium to people in a conference hall.

Conference Speech

Defense Secretary Jim Mattis speaks during the Air Force Association Air, Space and Cyber Conference at National Harbor, Md., Sept. 20, 2017. DoD photo by U.S. Air Force Tech. Sgt. Brigitte N. Brantley

Download: Full Size (1.18 MB)
Tags: secdef, jim mattis, air force, northcom, northern command, airmen
Credit: Brigitte N. Brantley VIRIN: 170920-D-GO396-0248L.JPG

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The Department of Defense provides the military forces needed to deter war and ensure our nation's security.

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