Combat support agency (CSA) is a designation by the

United States Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national sec ...

(DoD) of those defense agencies that provide department-level and tactical support to the U.S. military during combat operations. The designation was first outlined by the Goldwater-Nichols Department of Defense Reorganization Act of 1986, with subsequent additions based on the department's needs. The designation includes several intelligence agencies under DoD, which have a national mandate in addition to their departmental combat support role.https://www.esd.whs.mil/Portals/54/Documents/DD/issuances/dodd/300006p.pdf

Combat support agencies

Defense Contract Management Agency The Defense Contract Management Agency (DCMA) is an agency of the United States federal government reporting to the Under Secretary of Defense for Acquisition and Sustainment. It is responsible for administering contracts for the Department of ...

(DCMA) *

Defense Health Agency The Defense Health Agency (DHA) is a joint, integrated combat support agency that enables the U.S. Army, U.S. Navy, U.S. Air Force, and U.S. Space Force medical services to provide a medically ready force and ready medical force to Combatant Com ...

(DHA) *

Defense Information Systems Agency The Defense Information Systems Agency (DISA), known as the Defense Communications Agency (DCA) until 1991, is a United States Department of Defense (DoD) combat support agency composed of military, federal civilians, and contractors. DISA pro ...

(DISA) *

Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense, specializing in defense and military intelligence. A component of the Department of Defense (DoD) and the ...

(DIA) *

Defense Logistics Agency The Defense Logistics Agency (DLA) is a combat support agency in the United States Department of Defense (DoD), with more than 26,000 civilian and military personnel throughout the world. Located in 48 states and 28 countries, DLA provides su ...

(DLA) *

Defense Threat Reduction Agency The Defense Threat Reduction Agency (DTRA) is a combat support agency within the United States Department of Defense (DoD) for countering weapons of mass destruction (WMD; chemical, biological, radiological, nuclear, and high explosives). Ac ...

(DTRA) *

National Geospatial-Intelligence Agency The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of natio ...

(NGA) *

National Security Agency The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collecti ...

Central Security Service The Central Security Service (CSS) is a combat support agency of the United States Department of Defense which was established in 1972 to integrate the National Security Agency (NSA) and the Service Cryptologic Components (SCC) of the United ...

(NSA/CSS)

References

{{Reflist Military terminology of the United States United States Department of Defense agencies