Country Profile: British Indian Ocean Territory

The British Indian Ocean Territory (BIOT) is a strategically significant archipelago located in the Indian Ocean, primarily comprising the Chagos Archipelago. Established as an overseas territory of the UK in 1965, it is largely uninhabited except for Diego Garcia, which hosts a joint UK-US military facility. The territory's economy is mainly driven by military installations, while governance is overseen by a commissioner appointed by the UK. Recent diplomatic developments have centered around sovereignty claims by Mauritius and compensation for displaced islanders.

Geography

The British Indian Ocean Territory is an archipelago located south of India and approximately midway between Africa and Indonesia. Comprising 55 islands, it spans an area of 60 square kilometers, with Diego Garcia being the only inhabited island. The region boasts a tropical marine climate and is characterized by flat coral atolls.

• 60 sq km total area (includes the land area of Diego Garcia).
• 698 km coastline surrounding the territory.
• 0 m lowest elevation at sea level in the Indian Ocean.
• 9 m highest point located on ocean-side dunes of Diego Garcia.
• The territory is free from natural hazards due to its location outside cyclone routes.

People and Society

The British Indian Ocean Territory currently has no permanent inhabitants, with Diego Garcia serving as a military base. The historical population, primarily comprised of agricultural workers, was relocated between 1967 and 1973, resulting in no current civilian residents.

• Diego Garcia is home to a joint UK-US military facility.
• The local population, known as Chagossians, has faced significant historical displacement.

Economy

The economy of the British Indian Ocean Territory is limited and revolves mainly around military activities on Diego Garcia. Recent agreements have enabled increased oil exports, while the establishment of a marine reserve has restricted commercial fishing in the area.

• 86% of exports go to Singapore, with other partners including Pakistan and the US.
• Fish is the primary export commodity, valued over $500,000 in 2023.
• 52% of imports originate from Greece, with significant contributions from Singapore as well.
• The US dollar is the territory's official currency.

Government

The British Indian Ocean Territory is an overseas territory of the UK, administered from London by a commissioner. The governance structure follows UK law, and the territory is represented by military personnel on Diego Garcia. King Charles III serves as the head of state.

• The capital is administered from London but is often considered to be on Diego Garcia.
• The Commissioner Nishi Dholakia has been in office since December 2024.
• The territory's legal system is derived from UK laws.

Military and Security

The British Indian Ocean Territory does not have its own military forces; instead, defense responsibilities lie with the UK. A significant military base operates in Diego Garcia, which will continue under a long-term lease agreement following the anticipated transfer of sovereignty to Mauritius.

• The UK will maintain operational control of the military base for 99 years after the transfer agreement.
• Military forces are primarily composed of US and UK personnel stationed on Diego Garcia.

Transportation

Transport infrastructure in the British Indian Ocean Territory is limited, with only one airport and a small port serving Diego Garcia. The military base facilitates logistics and operational capabilities.

• 1 airport is operational as of 2025.
• 1 very small port is available, primarily for military use.

Communications

Communication in the British Indian Ocean Territory is focused on military needs, with dedicated services for personnel stationed there. Diego Garcia hosts critical GPS infrastructure that utilizes advanced technology for tracking.

• The internet country code is .io.
• Armed Forces Radio and Television Service (AFRTS) broadcasts for military personnel.

Key Metrics

Metric	Value	Note
Population	0	No permanent inhabitants
Area	60 sq km	Total area of the territory
Coastline	698 km	Length of coastline surrounding territory
Highest Point	9 m	Elevation on Diego Garcia
Exports	86% to Singapore	Major export partner
Imports	52% from Greece	Major import partner
Currency	US Dollar	Official currency used