Overseas military bases of the United Kingdom enable the British Armed Forces to conduct expeditionary warfare. Bases tend to be located in or near areas of strategic or diplomatic importance, often used for the build-up or resupply of military forces, as was seen during the 1982 Falklands War and the use of RAF Ascension Island as a staging post. Most of the bases are located on British Overseas Territories or former colonies which retain close diplomatic ties with the British government.
The British military has troops stationed in 145 overseas military bases located across 42 countries. Sixty bases are run directly by the British Armed Forces, including seventeen installations in Cyprus; whilst sixty-nine are operated by allied countries including Oman, which is home to sixteen bases, and Saudi Arabia, which has fifteen. Seven of the countries with a fixed UK military presence are featured on the Foreign and Commonwealth Office's list of 30 'Human Rights Priority Countries': Afghanistan, Bahrain, Iraq, Saudi Arabia, Somalia, Syria and Yemen.
A number of British military operations relied heavily on the strategic island of Diego Garcia in the Chagos Islands. It was used for major operations during the War on Terror, Operation Granby (1991), Operation Herrick (2001–2014), Operation Telic (2003–2011), Operation Shader (2014–present), Operation Desert Storm (1991), Operation Desert Fox (1998), Operation Enduring Freedom (2001–14), Operation Iraqi Freedom (2003–11), and Operation Inherent Resolve (2014–present).
Journalist John Pilger has said: "Not a year has passed since peace was declared in 1945 that Britain has not sent military forces to fight the wars of empire. Not a year has passed when countries, mostly poor and riven by conflict, have not bought or have been “soft loaned” British arms to further the wars, or “interests,” of empire."
Whilst the Ministry of Defence has publicly stated that the British Armed Forces only operates military bases in the UK, the United States, Cyprus, Gibraltar and the South Atlantic, a November 2020 report by Declassified UK journalist Phil Miller revealed that there were in fact a total of 145 military sites that spanned all seven continents. These figures were revealed in the wake of UK Prime Minister Boris Johnson announcing a £16.5 billion increase in the country's defence budget.
The 145 base sites include 60 which the UK operates itself, as well as a further 85 run by British allies. According to Miller, these appear to fit the description of what Mark Carleton-Smith, the Chief of the General Staff, referred to as "lily pads", i.e. sites which the British Armed Forces have easy access to as and when they are required.
In Africa, British troops are based in Djibouti, Kenya, Malawi, Mali, Nigeria, Sierra Leone and Somalia. There are five bases in Kenya, including the Kifaru Camp, which is part of the BATUK at the Kahawa Barracks in Nairobi.
In the Chagos Islands, the British and American military jointly operate the Naval Support Facility Diego Garcia. The command's mission is "[t]o provide logistic support to operational forces forward deployed to the Indian Ocean and Persian Gulf AORs in support of national policy objectives." The facility started construction in 1971 and was complete by 1976, becoming operational the very same year. Despite the fact that it is technically owned by the Ministry of Defence, the facility is primarily occupied by U.S. Navy elements.
The British Rothera Research Station is located on Antarctica. HMS Protector supplies the civilian scientific research station and patrols nearby waters, including those around the South Georgia and the South Sandwich Islands.
There are sixty-one British military bases in Asia, far more than any other continent. Most of these are in Arab monarchy dictatorships like Saudi Arabia, which is home to fifteen sites, and Oman, which has sixteen of them. Bahrain and the United Arab Emirates have two bases and one base, respectively. There is also a two-man squad at the Embassy of the United States in Jerusalem. These two soldiers are understood to assist the work of Mark C. Schwartz, the US security coordinator for Israel and the Palestinian Authority. Schwartz uses the embassy as his headquarters.
Australia is host to four British military bases: the Wyndham aerodrome in Western Australia, Williamtown in New South Wales, Woomera and Mawson Lakes, both in South Australia. According to a Declassified report, the British military also has around 60 personnel stationed across the country. Around 25 of these hold defence attaché roles in the British High Commission in Canberra and at Australian Defence Department sites near the capital, such as the Headquarters Joint Operations Command at Bungendore.
A further ten British military personnel are based at unspecified locations in New Zealand. Parliamentary data from 2014 showed their roles included working as navigators on a P-3K Orion aircraft, which is operated by the Royal New Zealand Air Force.
The British military operates seventeen military bases in Cyprus, a higher number per country than other other nation it has troops stationed in. These include the "sovereign base areas" of Akrotiri and Dhekelia, being host to 2,290 British personnel. There are also four bases in Germany and one in the British Crown Dependency of Jersey, Lithuania, Estonia and the Czech Republic.
The British military has troops stationed in six U.S. states including California (Edwards Air Force Base), Nevada (Creech Air Force Base) and South Carolina (MCAS Beaufort).
The Turks and Caicos Islands, Montserrat, Bermuda and the Cayman Islands all are host to British troops as well, as they are British Overseas Territories and as such are defended by the United Kingdom. The most recently established of these is the Turks and Caicos Islands Regiment, which was officially raised in April 2020.
RAF Mount Pleasant is the largest of six sites in the Falkland Islands, which is the only territory in South America with British military personnel. Mount Pleasant is supplied from a dockyard at Mare Harbour and is protected by three anti-aircraft missile silos on Mount Alice, Byron Heights and Mount Kent, respectively.
|Map of current military installations|
The British Armed Forces maintain a number of garrisons and military facilities around the world:
|Ascension Island||RAF Ascension: The RAF maintains an airbase on Ascension Island; notable for use as a staging post during the 1982 Falklands War, the territory is also the site of a joint UK-US signals intelligence facility.|||
|Bahrain||HMS Jufair: Britain's return East of Suez was marked with the establishment of a large Naval Support Facility. Officially opened in 2018, at the Bahraini port of Mina Salman, the base can support vessels up to the size of aircraft carriers. Bahrain is also home to the UK Maritime Component Command, which supports Royal Navy mine countermeasures vessels deployed in the Middle East.|||
|Belize||British Army Training and Support Unit Belize (BATSUB): Used primarily for jungle warfare training, with access to 5,000 square miles (13,000 km2) of jungle terrain. Although British facilities were mothballed in the Strategic Defence and Security Review 2010, BATSUB is still seeing increased usage.|||
|British Indian Ocean Territory||British Forces British Indian Ocean Territories: A Permanent Joint Operating Base. Although the Naval Support Facility Diego Garcia and airbase facilities on Diego Garcia are leased to the United States, the UK retains ownership and continual access. The small but permanent British garrison, known as Naval Party 1002, forms the civil administration on this British Overseas Territory.|||
|Brunei||British Forces Brunei: A garrison made up of one battalion from the Royal Gurkha Rifles and No. 7 Flight AAC. Established in 1959, it also hosts routine jungle warfare courses for the British Army and Royal Marines.|||
|Canada||British Army Training Unit Suffield: Home to a large contingent of in-service British Army vehicles, such as the Challenger 2 and Warrior IFV. It is the British Army's largest armoured warfare training facility, training up-to 5 battlegroups, each consisting of 1,400 personnel, every year.|||
|Cyprus||British Forces Cyprus: A Permanent Joint Operating Base with significant garrisons in Akrotiri and Dhekelia, including RAF Akrotiri, the joint signals intelligence stations RAF Troodos and Ayios Nikolaos, and facilities to support two resident infantry battalions and supporting British Army units.|||
|Falkland Islands||British Forces South Atlantic Islands: A Permanent Joint Operating Base. The British garrison is centred around RAF Mount Pleasant (the Mount Pleasant Complex) and includes commitments from all branches of the Armed Forces, most notably; No. 1435 Flight RAF (4 x Typhoons), No. 1312 Flight RAF (one Voyager and one Hercules), HMS Forth, and 1,000 British Army personnel. There are also early-warning and airspace-control radar stations at critical locations, and East Cove Military Port, a deep-water port operated by Naval Party 2010.|||
|Germany||British Army Germany: Home of the 23 Amphibious Engineer Squadron and other supporting elements as well as depots and the Alpine Training Centre Hubertushaus in Oberstdorf.|
|Gibraltar||British Forces Gibraltar: A Permanent Joint Operating Base. Britain has maintained a military presence in Gibraltar since its capture (1704) and the subsequent Treaty of Utrecht (1713). Facilities include (but are not limited to) the airbase RAF Gibraltar and the Port of Gibraltar.|||
|Kenya||British Army Training Unit Kenya: Used primarily for the training of British infantry battalions in the arid and rugged terrain of the Great Rift Valley. Routine Royal Engineers and Royal Army Medical Corps exercises also carry out civil engineering projects and health care assistance to the local communities.|||
|Nepal||British Gurkhas Nepal: The British Army maintains a small outpost in Nepal for recruitment purposes to the Brigade of Gurkhas.|||
|Oman||UK Joint Logistics Support Base: A military logistics centre and training facility under construction in Duqm that will have a dry dock and be able to accommodate submarines and Queen Elizabeth-class aircraft carriers. It could be linked to other Persian Gulf countries by the Gulf Railway. Additionally, a permanent British Army presence is maintained at the Omani-British Joint Training Area which opened in 2019.|||
|Qatar||RAF Al Udeid: An outpost at Al Udeid Air Base serving as the headquarters for No. 83 Expeditionary Air Group and its operations across the Middle East.|
|Singapore||British Defence Singapore Support Unit: A Royal Navy repair and logistics support facility at Sembawang wharf in support of the Five Power Defence Arrangements.|||
Six British Overseas Territories also maintain their own locally raised units for home defence and security:
|Bermuda||The Royal Bermuda Regiment: Formed in 1965.||www.bermudaregiment.bm|
|Cayman Islands||Cayman Islands Regiment: Formed in 2019.||www.exploregov.ky/ciregiment|
|Falkland Islands||Falkland Islands Defence Force: Traces its origins back to 1847. The force consists of one light infantry company and trains once per week. It is manned entirely by the local population, following British Army doctrine, training and operations.||www.fig.gov.fk/fidf|
|Gibraltar||Royal Gibraltar Regiment: Raised in 1943. The regiment consists of one infantry battalion (1 x HQ company and 3 x infantry companies) and dispatches members to take part in British conflicts overseas.||royalgibraltarregiment.gi|
|Montserrat||Royal Montserrat Defence Force: Raised in 1899.|
|Turks and Caicos Islands||Turks and Caicos Islands Regiment: Raised in 2020.|