HomeNewsDiego Garcia Military Base and British Indian Ocean Territory Bill – Second Reading

Diego Garcia Military Base and British Indian Ocean Territory Bill – Second Reading

  • 09/09/2025
  • Posted by: Valerie Vaz MP
  • Category: News
On 9 September 2025 the House of Commons debated the Bill at second reading. 
The Bill implements the 22 May 2025 Treaty between Mauritius and the UK, transferring sovereignty of the Chagos Archipelago, including the Diego Garcia military base, to Mauritius. It also ends UK sovereignty over the British Indian Ocean Territory in domestic law, updates nationality legislation, preserves existing laws for continuity, and grants powers to make further provisions by Order in Council.
A reasoned amendment to reject the Bill failed, and the motion that the Bill be read a second time passed: Ayes 330, Noes 179.