The United Kingdom has put the planned transfer of the Chagos Islands to Mauritius on indefinite hold after the US administration under President Donald Trump withdrew its support. The islands, located in the Indian Ocean, host a strategic UK-US military base on Diego Garcia. The British government acknowledged that legislation to ratify the handover expired without parliamentary approval.
Background of the Chagos Islands Deal
The UK agreed to transfer sovereignty of the Chagos Islands, which have been under British control since 1814, to Mauritius. The deal included a 99-year leaseback of the Diego Garcia military base to the UK and US. The United Nations and its International Court have urged Britain to return the islands to Mauritius. The UK government maintains the agreement would protect the base from legal challenges.
US Withdrawal of Support
President Trump initially supported the handover but reversed his position in January 2026, calling the deal “an act of GREAT STUPIDITY” on social media. His administration’s withdrawal of backing led to the UK government halting the bill’s progress. The legislation ran out of time before the current parliamentary session ended and is not scheduled for reintroduction in the next session starting May 13, 2026.
Strategic Importance of Diego Garcia Base
The Diego Garcia base supports joint UK-US military operations and has been used in conflicts including Vietnam, Iraq, Afghanistan, and US-Israeli actions against Iran. The UK government emphasises the base’s long-term operational security as the primary reason for the handover deal. The agreement aimed to secure the base’s status amid international legal pressures.
Political and Local Reactions
The UK Labour government under Prime Minister Keir Starmer faces opposition from Conservative and Reform UK parties, which argue the deal risks interference from China and Russia. Displaced Chagossians, numbering around 10,000, mostly living in the UK, Mauritius, and Seychelles, oppose the deal due to lack of consultation and concerns over their right to return. Starmer’s government initially restricted, then partially allowed, US military use of UK bases for strikes on Iran.
What to Study for UPSC Exams?
- India-Mauritius Strategic Relations
- International Maritime Law and Sovereignty
- Geopolitics of Indian Ocean Region
- United Nations and International Court of Justice
India-Mauritius Strategic Relations
India and Mauritius share strong historical, cultural, and economic ties, with India being Mauritius’ largest trading partner. Both countries collaborate on maritime security, counter-terrorism, and regional connectivity projects. India has invested in Mauritius’ infrastructure and supports capacity-building initiatives, enhancing its influence in the Indian Ocean region.
International Maritime Law and Sovereignty
International maritime law governs rights over oceans, including territorial waters, exclusive economic zones, and continental shelves. The United Nations Convention on the Law of the Sea (UNCLOS) is the primary legal framework. Sovereignty disputes often involve issues of resource rights, navigation freedoms, and environmental protection.
Geopolitics of Indian Ocean Region
The Indian Ocean is a critical global trade route with abundant natural resources and strategic naval bases. Major powers, including India, China, and the US, compete for influence through military presence and economic investments. Control of chokepoints like the Strait of Hormuz and Bab-el-Mandeb is vital for energy security.
United Nations and International Court of Justice
The United Nations (UN) is an international organization promoting peace, security, and cooperation among states. The International Court of Justice (ICJ), its principal judicial organ, settles legal disputes between states and issues advisory opinions. ICJ rulings are binding but rely on state compliance for enforcement.
Last Modified: April 11, 2026