Washington, D.C. — February 19, 2026
Donald Trump has urged Keir Starmer not to proceed with plans to transfer sovereignty of Diego Garcia to Mauritius, warning that the strategically located Indian Ocean island could be critical if diplomatic talks with Iran collapse.
The comments come after the United Kingdom announced last year its decision to return the Chagos Archipelago to Mauritius following international legal and diplomatic pressure. Under the agreement, however, the U.S.–U.K. military base on Diego Garcia would remain operational under a long-term lease reportedly lasting 99 years.
Trump Calls Transfer a “Mistake”
In a social media post, Trump described London’s decision as a major strategic error, arguing that lease arrangements do not carry the same geopolitical weight as sovereign control. He said he has repeatedly advised Starmer against relinquishing authority over the island, citing its importance in global security planning.
Trump stated that if ongoing diplomatic discussions between Washington and Tehran fail, the United States may need access to Diego Garcia for potential military operations. He added that the United States would stand ready to support Britain if its territorial interests were challenged.
Strategic Importance of Diego Garcia
Diego Garcia is widely considered one of the most strategically positioned military outposts in the Indian Ocean. The island hosts a joint U.S.–U.K. base used for logistics, surveillance, and long-range operations. Its location enables rapid deployment across Asia, the Middle East, and East Africa.
Background: Why the UK Agreed to Return the Islands
Mauritius gained independence from Britain in 1968, but the Chagos Islands remained under British administration. In 2019, the International Court of Justice issued an advisory opinion stating that Britain should end its administration of the archipelago.
Following years of diplomatic pressure, London reached an agreement with Mauritius in 2025 to return sovereignty while preserving military access to Diego Garcia under lease terms.
Geopolitical Implications
Security analysts say the issue highlights the intersection of decolonization policy, international law, and defense strategy. While the sovereignty transfer addresses longstanding territorial claims, the continued presence of a Western military base underscores the island’s enduring strategic value.
📊 Key Facts Snapshot
| Topic | Detail |
|---|---|
| Island | Diego Garcia |
| Location | Indian Ocean |
| Sovereignty Plan | Transfer to Mauritius |
| Military Status | Base remains under long-term lease |
| Strategic Role | Regional military logistics hub |
