UK Agrees to Transfer Chagos Archipelago to Mauritius with Conditions
Key Points
The United Kingdom has agreed to transfer the Chagos Archipelago to Mauritius, while maintaining a lease on the strategic military base Diego Garcia. This decision follows international pressure and criticism from the US President. It is crucial for UPSC aspirants to understand this geopolitical development, relevant to GS Papers 2 and 3. Last Updated: 2026-01-28
Key Facts About the Chagos Archipelago Transfer
- The Chagos Archipelago consists of 58 islands in the Indian Ocean.
- Diego Garcia is the largest island and serves as a crucial military base.
- Colonized by France in 1715, Mauritius and Chagos were later ceded to Britain under the 1814 Treaty of Paris.
- In 1965, Britain detached Chagos from Mauritius, providing a £3 million grant for the detachment.
- The British Indian Ocean Territory was established in 1966 for US military use.
- Diego Garcia became fully operational as a joint UK–US military base in 1986.
- The International Court of Justice deemed the detachment unlawful in a 2019 advisory opinion.
- In 2024, the UK agreed to transfer sovereignty to Mauritius, while securing a 99-year lease for Diego Garcia.
Geopolitical Significance of the Chagos Transfer
The transfer of the Chagos Archipelago to Mauritius marks a significant geopolitical shift, reflecting broader themes of decolonization and international law compliance. This move aligns with India's strategic interests in the Indian Ocean region, which is crucial for trade and security. The retention of military control over Diego Garcia ensures continued strategic presence, vital for regional stability and counter-terrorism efforts.
Related Government Schemes/Policies
- British Indian Ocean Territory Policy: Established for US military use.
- UK-Mauritius Sovereignty Agreement: Facilitates the transfer of Chagos with conditions.
UPSC Relevance
- GS Paper 2: International relations, decolonization, and international law.
- GS Paper 3: Strategic importance of the Indian Ocean, defense, and security.
- Prelims: Questions on the location and significance of Chagos Archipelago and Diego Garcia.
- Mains: Analytical themes on decolonization, international law, and strategic military bases.
FAQ Section
- What is the Chagos Archipelago?
The Chagos Archipelago is a group of 58 islands in the Indian Ocean, with Diego Garcia as its largest island, serving as a strategic military base. - Why is the Chagos Archipelago important?
It holds significant geopolitical importance due to its strategic location and the presence of the joint UK-US military base on Diego Garcia. - What are the key features of the UK-Mauritius agreement?
The agreement involves transferring sovereignty to Mauritius while the UK retains a 99-year lease on Diego Garcia for military purposes.
Detailed Coverage
- Chagos Archipelago consists of 58 islands in the Indian Ocean.
- Diego Garcia is the largest island and a crucial military base.
- France colonized Mauritius and Chagos in 1715.
- Under the 1814 Treaty of Paris, France ceded territories to Britain.
- Britain detached Chagos from Mauritius in 1965.
- Britain provided Mauritius with a £3 million grant for the detachment.
- In 1966, the US was allowed to use the British Indian Ocean Territory for military purposes.
- Diego Garcia became fully operational in 1986 as a joint UK–US military base.
- The base played a vital role in the Gulf War, Iraq, and Afghanistan wars.
- The International Court of Justice issued an advisory opinion in 2019 on the unlawful detachment.
- In 2024, the UK agreed to transfer sovereignty to Mauritius.
- The UK secured a 99-year lease for Diego Garcia base control.
- The UK acknowledged the unlawful detachment of Chagos.
- The transfer of sovereignty is significant for Mauritius.
- The deal retains military control over Diego Garcia.
- This agreement is a response to international legal developments.