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UK Halts Chagos Sovereignty Transfer After U.S. Pulls Support

The pause underscores how the Diego García base outweighs the UK’s decolonization pledge under current U.S. policy.

Overview

  • The UK plan, which officials said Saturday lacked time for ratification in Parliament, is now on hold indefinitely after Washington withdrew support under President Donald Trump.
  • Downing Street says it will only proceed with the sovereignty deal if the United States backs it, and it is still in talks with Washington and Mauritius.
  • The agreement negotiated in May 2025 would return the archipelago to Mauritius while leasing Diego García back to the UK for 99 years, with reports of £101 million a year for access.
  • Diego García hosts a joint UKU.S. base that U.S. officials describe as practically indispensable for operations across the Middle East, South Asia, and East Africa.
  • Mauritius’ foreign minister vowed to pursue diplomatic and legal routes, while displaced Chagossians continue to seek return and redress, backed by a 2019 ICJ opinion urging the UK to end its control.