The Defense Information Systems Agency is a United States Department of Defense combat support agency with the goal of providing real-time information technology (IT) and communications support to the President, Vice President, Secretary of Defense, the military Services, and the Combatant Commands. As part of the Base Realignment and Closure, DISA is in the process of moving from Arlington, Virginia to Fort Meade in Maryland, and will complete the transition by September 2011. DISA's role in DoD information management continued to expand with implementation, in September 1992, of several Defense Management Report Decisions (DMRD), most notably DMRD 918. DMRD 918 created the Defense Information Infrastructure (DII), now more commonly understood as the GIG.

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