text: Appendix D
  National, Department of Defense, Army Reserve, and Joint
  Cyberspace and Electromagnetic Warfare Organizations
  Appendix D discusses the national, Department of Defense, and Army Reserve
  components that support cyberspace operations. This appendix also provides an
  overview of the United States Cyber Command and its subordinate joint organizations
  that deliver cyberspace operations and electromagnetic warfare support to Army
  commanders using cyberspace mission forces.
  NATIONAL ORGANIZATIONS
  D-1. The United States Constitution establishes the President’s authority as Commander in Chief of the
  Armed Forces and gives authority for Congress to fund and regulate the Armed Forces. The President, as
  Commander in Chief, commands the missions of the Armed Forces and, according to the laws passed by
  Congress, administers the Armed Forces.
  D-2. The Department of Justice and the Department of Homeland Security also have active roles in national
  cyberspace security with the DOD. The Department of Justice leads the national effort to investigate cyber-
  based terrorism, espionage, computer intrusions, and major cyber fraud and is responsible for protecting the
  commercial domains such as .com, .net, and .org. The Department of Homeland Security is responsible for
  overseeing the .gov domain’s protection and providing assistance and expertise to private sector owners and
  operators. The DOD protects the .mil domain.
  D-3. As part of the Department of Justice, the Federal Bureau of Investigation conducts domestic national
  security operations, investigates attributes, disrupts cyberspace crimes, and collects, analyzes, and
  disseminates domestic cyber intelligence. The Department of Homeland Security National Cyber Security
  Division collaborates with the government, industry, academia, and the international community to make
  cyberspace security a national priority and shared responsibility. For additional information on Department
  of Homeland Security responsibilities, see joint doctrine on cyberspace operations.
  D-4. Each of the Armed Services has law enforcement and counterintelligence organizations that conduct
  many of the FBI and Department of Homeland Security functions specific to their appropriate Service. These
  organizations include the Air Force Office of Special Investigations, the Naval Criminal Investigative
  Service, the United States Army Criminal Investigation Command, and the United States Army Intelligence
  and Security Command.
  D-5. In coordination with the Department of Homeland Security and responsible state and local officials,
  the National Guard Bureau coordinates Army National Guard efforts to secure the nation, protect critical
  state infrastructure, and respond to state cyberspace emergencies. Many states have established cyber
  response teams capable of responding to cyberspace emergencies in the country.
  DEPARTMENT OF DEFENSE ORGANIZATIONS
  D-6. DOD uses cyberspace capabilities to shape cyberspace and conduct cyberspace operations missions to
  defend our nation under the authorities of the Secretary of Defense. Authority for cyberspace operations
  undertaken by the U.S. Armed Forces derives from the U.S. Constitution and federal law.
  D-7. Key sections of the USC that apply to the DOD include Title 10, Armed Forces; Title 50, War and
  National Defense; and Title 32, National Guard. Appendix D, Table D-1, discusses all applicable USC
  sections that apply to cyberspace operations. The following agencies provide direct or indirect support for
  cyberspace operations: