The United States Fleet Forces Command (USFF) is a service component command of the United States Navy that provides naval forces to a wide variety of U.S. forces. The naval resources may be allocated to Combatant Commanders such as United States Northern Command (USNORTHCOM) under the authority of the Secretary of Defense. Originally formed as United States Atlantic Fleet (USLANTFLT) in 1906, it has been an integral part of the defense of the United States of America since the early 20th century. In 2002, the Fleet comprised over 118,000 Navy and Marine Corps personnel serving on 186 ships and in 1,300 aircraft, with an area of responsibility ranging over most of the Atlantic Ocean from the North Pole to the South Pole, the Caribbean Sea, Gulf of Mexico, and the waters of the Pacific Ocean along the coasts of Central and South America.

Naval Support Activity Hampton Roads is a United States Navy Echelon 4 regional support commander that is responsible to Navy Region Mid-Atlantic for the operation and maintenance of the installation of the same name that it is headquartered on. Adjacent to, but separate from Naval Station Norfolk, NSA Hampton Roads has the largest concentration of fleet headquarters administrative and communication facilities outside of Washington, D.C., including the headquarters for United States Fleet Forces Command, Naval Reserve Forces Command and United States Marine Corps Forces Command, along with components of the Joint Chiefs of Staff, and the home campus for the Joint Forces Staff College. NSA Hampton Roads is also home to NATO’s Joint Force Command Norfolk and NATO's Allied Command Transformation.