Department of Defense - the federal department responsible for safeguarding national security of the UnitedStates; created in 1947executive department - a federal department in the executive branch of the government of the United States Department of Defense Laboratory System, LABLINK - a defense laboratory that provides essential services in fundamental science for national security and environmental protection and provides technologies that contribute to industrial competitiveness Defense Intelligence Agency, DIA - an intelligence agency of the United States in the Department of Defense; is responsible for providing intelligence in support of military planning and operations and weappons acquisition Defense Logistics Agency - a logistics combat support agency in the Department of Defense; provides worldwide support for military missions National Reconnaissance Office, NRO - an intelligence agency in the United States Department of Defense that designs and builds and operates space reconnaissance systems to detect trouble spots worldwide and to monitor arms control agreements and environmental issues and to help plan military operations National Security Agency, NSA - the United States cryptologic organization that coordinates and directs highly specialized activities to protect United States information systems and to produce foreign intelligence information Defense Information Systems Agency, DISA - 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 Casualty Care Research Center, CCRC - an agency in the Department of Defense that is a national center for research on all aspects of injury control and casualty care |