2008 Defense Intelligence Strategy
"Defense intelligence is a critical component of the U.S. intelligence enterprise.
It has two missions: first, to respond to the unique policy, operational and acquisition requirements of the Department of Defense, and second, to respond to national intelligence missions assigned to the Department of Defense. It comprises the Under Secretary of Defense (Intelligence); national and defense intelligence agencies represented by the NGA, NSA, NRO and DIA; defense organizations such as DSS and CIFA; Service and agency intelligence, counterintelligence and security elements; and joint intelligence components, including those of the Joint Staff and the Combatant Commands..."