The United States Navy

The size, complexity, and international presence of the United States Navy require a large number of navy installations to support its operations. While the majority of bases are located inside the United States itself, the Navy maintains a significant number of facilities abroad, either in U.S.-controlled territories or in foreign countries under a Status of Forces Agreement (SOFA).
• Eastern United States
The second largest concentration of installations is in Hampton Roads, Virginia, where the Navy occupies over 36,000 acres (146 km²) of land. Located in Hampton Roads are NS Norfolk, homeport of the Atlantic Fleet, NAS Oceana, a Master Jet Base, Naval Amphibious Base Little Creek, as well as a number of Navy and commercial shipyards that service Navy vessels. The state of Florida is the location of three major bases, Naval Station Mayport, the Navy's fourth largest, near Jacksonville, Florida, Naval Air Station Jacksonville, a Master Air Anti-submarine Warfare base, and Naval Air Station Pensacola, home of the Naval Education and Training Command, the Naval Air Technical Training Center that provides specialty training for enlisted aviation personnel, and the primary flight training base for Navy and Marine Corps Naval Flight Officers and enlisted Naval Aircrewmen. The main U.S. Navy submarine bases on the east coast are located in Groton, Connecticut and Kings Bay, Georgia. There are also naval bases in Portsmouth, New Hampshire and Brunswick, Maine. Naval Station Great Lakes, north of Chicago, Illinois is the home of the navy's boot camp for enlisted sailors.