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A military base is a facility directly owned and operated by or for the military or one of its branches that shelters military equipment and personnel, and facilitates training and operations. In general, a military base provides accommodations for one or more units, but it may also be used as a command center, a training ground, or a proving ground. In most cases, a military base relies on some outside help in order to operate. However, certain complex bases are able to endure by themselves for long periods because they are able to provide food, water and other life support necessities for their inhabitants while under siege.
The military sense of the word base dates from the 1860s.
Jurisdictional definition 
Bases are usually extra-legal jurisdictions not subject to civil law. They can range from small outposts to military cities containing up to 100,000 people. Some military bases may belong to a different nation or state than the territory surrounding it.
The name used generally refers to the type of military activity that takes place at the base.
A military base may go by any of a number of names, such as the following:
- Armory (military)
- Combat Outpost (COP)
- Fire support base (FSB, FB)
- Forward Operating Base (FOB)
- Joint base
- Magazine (artillery)
- Main Operating Base (MOB)
- Marine Corps base
- Military airbase, airfield or field
- Military camp
- Naval air station
- Naval base
- Naval dockyard
- Outpost (OP)
- Proving ground
- Shipyard or yard
Types of establishment 
Depending on the context, the term 'military base' may refer to any establishment (usually permanent) that houses a nation's armed forces, or even organized paramilitary forces such as the Police, Constabulary, Militia, or Guards. Alternatively, the term may refer solely to an establishment which is used only by an army (or possibly other land fighting related forces, such as marines) to the exclusion of a base used by either an air force or a navy. This is consistent with the different meanings of the word 'military'.
Some examples of permanent military bases used by the navies and air forces of the world are the Royal Dockyards in Portsmouth, UK, the Naval Air Station Whidbey Island, Washington State, USA, or Ramstein Air Base, Germany (the last two are each designated as a Main Operating Base). Other examples of non- or semi-permanent military bases include a Forward Operating Base (FOB), a Logistics Base (Log base) and a Fire Base (FB).
A military base may also contain large concentrations of military supplies in order to support military logistics. Most military bases are restricted to the public and usually only authorized personnel may enter them (be it military personnel or their relatives and authorized civilian personnel).
Military bases usually provide housing for military personnel, a post office and dining facilities (DFACs). They may also provide support facilities such as fast food restaurants like Burger King, or AAFES snack bar, a gas station, chapels, schools, a hospital or clinic (dental or health clinics), shopping and convenience retail stores such as a Base/Post exchange (BX/PX) or shoppette, beauty salon, and laundromats. Family, Morale, Welfare and Recreation (FMWR) provides facilities such as fitness centers, libraries, athletic fields, basketball hoops, child development centers, automotive work shops, hobby/arts and crafts centers, bowling centers, and community activity centers.
In Russian usage "military base" or "naval base" is not limited to denoting a specific fence described facility and usually encompasses a broad territory within which a number of discrete facilities may be located. As an examples, 1) the Russian Sevastopol Naval Base comprises individual facilities located within the city of Sevastopol proper (waterfront moorings, weapons stores, a headquarters compound, and a naval infantry base) as well as an airfield at Kacha north of the city; 2) the Leningrad Naval Base comprises all naval facilities in the greater St. Petersburg area including training schools, commissioning institutes, the naval academy, and the Kronshtadt base on Kotlin island.
Overseas military base 
An Overseas military base is a military base that is geographically located outside of the territory of the country whose armed forces are the principal occupants of the base.
The overseas military base has, throughout its history of usage (and particularly in peacetime and the host country's period of civil unrest), been a contentious issue of debate, and is often a source of opposition for antimilitarists and nationalists in the host country. Such bases may be established by treaties between the governing power in the host country and another country which needs to establish the military base in the host country for various reasons, usually strategic and logistic.
Furthermore, overseas military bases often serve as the source of the military brat subculture due to the children of the bases' occupant military being born or raised in the host country but raised with a remote parental knowledge of the occupant military's home country.
British military bases 
In the 18th and 19th Centuries the Royal Engineers were largely responsible for erecting military bases in the British Isles and the British Empire. In 1792 the Chief Engineer was instructed to prepare the Barrack Construction estimates for Parliament and at the same time the Department of the Barrackmaster-General was established.
During the period from the 1840s through the 1860s barracks were constructed under supervision of the Royal Engineers in:
- Bristol (1847)
- Preston (1848)
- Tower of London (1851),
- Sheerness (1854)
- Sheffield (1854)
- Curragh Camp (1855)
- Devonport (1856)
- Chelsea (1861)
The Cardwell Reforms (1872) ushered in another period of intensive Barrack building at Aldershot, Portsmouth, Plymouth, London, Woking, Woolwich, Dublin, Belfast, Malta, Gibraltar and the Cape of Good Hope.
In 1959 the Corps' Work Services was transferred to the civilian War Department Works Organization (later renamed Property Services Agency (PSA)) and by 1965 the (Specialist Teams Royal Engineers (STRE)) were formed to plan and execute Works projects worldwide.
British naval bases are traditionally named, commissioned, and administered as though they were naval ships. For this reason they are sometimes called stone frigates.
See also 
|Look up base in Wiktionary, the free dictionary.|
- Military Bases
- Official Directory of US Military bases.
- Royal Engineers Museum Military Works (construction)
- New US Military Bases: Side Effects Or Causes Of War? by Zoltan Grossman
- US Office of the Deputy Under Secretary of Defense (Installations and Environment)
- Outposts of Empire - Booklet and map of the American military bases in the world. Transnational Institute, March 2007