Defense Information Systems Agency

Noun

1.

Defense Information Systems Agency - a combat support agency in the Department of Defense responsible for developing and operating and supporting information systems to serve the needs of the President and the Secretary of Defense and the Joint Chiefs of Staff Synonyms: DISA

Defense Information Systems Agency - (DISA) Formerly called the Defense Communications Agency (DCA), this is the government agency responsible for managing the Defense Data Network (DDN) portion of the Internet, including the MILNET. Currently, DISA administers the DDN, and supports the user assistance services of the DDN NIC. http://www.disa.mil/.

agency, authority, bureau, Defense, Defense Department, Department of Defense, DISA, DoD, federal agency, government agency, office, United States Department of Defense