The Defense Information Systems Agency, known as the Defense Communications Agency until 1991, is a United States Department of Defense combat support agency composed of military, federal civilians, and contractors. DISA provides information technology and communications support to the President, Vice President, Secretary of Defense, the military services, the combatant commands, and any individual or system contributing to the defense of the United States.
According to the mission statement on the agency website, DISA “provides, operates, and assures command and control, information sharing capabilities, and a globally accessible enterprise information infrastructure in direct support to joint warfighters, National level leaders, and other mission and coalition partners across the full spectrum of operations.” DISA’s vision is “Information superiority in defense of our Nation.”
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