I thank the hon. Gentleman for his question. Following two years of negotiation under three Prime Ministers, on 3 October the Government secured a deal that will protect the secure operation of the UK-US base on Diego Garcia well into the next century. The Government inherited a situation where that future was under threat. International courts were reaching judgments on the basis that Mauritius had sovereignty over the Chagos archipelago. International organisations were also taking steps not to undermine Mauritian sovereignty claims. That was not sustainable.
The base on Diego Garcia plays a critical role in countering an array of threats to regional and international security. Without legal certainty, the base simply cannot operate effectively. Continued uncertainty would be a gift to our adversaries. That is why the agreement has been welcomed by all parts of the US system, and other critical regional security partners, including India. Agreeing the deal now, on our terms, meant that we were able to secure strong protections that will allow the base to operate as it has done. We have secured a deal that protects our national interests, respects the interests of our partners and upholds the international rule of law. There will be clear commitments in the treaty to robust security arrangements, including arrangements preventing the presence of foreign security forces on the outer islands, so that the base can continue to operate securely and effectively. We would not have signed off on an agreement that compromised any of our security interests, or those of our allies.
The agreement will be underpinned by a financial settlement that is acceptable to both sides, and will underpin a strong, long-term partnership with Mauritius. That was crucial to securing the agreement. The Government will not scrimp on our national security; however, I am sure that the House will understand that it is not normal practice for the UK to reveal the value of payments for military bases anywhere across the globe, because to do so would put at risk their future secure operation.
The deal will also deliver benefits for the Chagossian community, who were removed from the islands in the 1960s and 1970s. I know that the whole House has already expressed, and will join me in again expressing, regret for that shameful episode. Mauritius will now be able to implement a programme of resettlement to the islands, other than Diego Garcia, and we will work together to start a programme of visits for Chagossians to all the islands. The UK will finance a new trust fund for Mauritius to support Chagossians, and will provide additional Government support to those living in the UK. All Chagossians will of course remain eligible for British citizenship and free to make their home in the UK.
We will work with Mauritius to ensure the continued protection of the islands’ unique environment, with the shared objective of securing and protecting one of the world’s most important marine environments. That will include the establishment of a Mauritius marine protected area. The agreement also shuts down the possibility of the Indian ocean being used as a dangerous illegal migration route to the UK, with Mauritius taking responsible for any future arrivals.