United States Navy

===Foreign countries===
The largest overseas base is the [[United States Fleet Activities Yokosuka]], Japan, which serves as the home port for the navy's largest forward-deployed fleet and is a significant base of operations in the Western Pacific.{{citation needed|date=November 2022}}

European operations revolve around facilities in Italy ([[Naval Air Station Sigonella|NAS Sigonella]] and [[Naval Computer and Telecommunications Station Naples, Italy|Naval Computer and Telecommunications Station Naples]]) with [[Naval Support Activity Naples|NSA Naples]] as the homeport for the Sixth Fleet and Command Naval Region Europe, Africa, Southwest Asia (CNREURAFSWA), and additional facilities in nearby [[Gaeta]]. There is also [[Naval Station Rota, Spain|NS Rota]] in Spain and [[Crete Naval Base|NSA Souda Bay]] in Greece.

In the Middle East, naval facilities are located almost exclusively in countries bordering the [[Persian Gulf]], with [[Naval Support Activity Bahrain|NSA Bahrain]] serving as the headquarters of [[U.S. Naval Forces Central Command]] and [[U.S. Fifth Fleet]].

[[Guantanamo Bay Naval Base|NS Guantanamo Bay]] in Cuba is the oldest overseas facility and has become known in recent years as the location of a [[Guantanamo Bay detention camp|detention camp]] for suspected [[al-Qaeda]] operatives.<ref name="ForeignFacilities">{{cite web|url=http://militarybases.com/navy/ |title=Naval facilities outside the US |publisher=United States Navy |access-date=20 June 2015 |archive-url=https://web.archive.org/web/20150518160349/http://militarybases.com/navy/ |archive-date=18 May 2015}}</ref>