London – In a phone call on Monday, British Prime Minister Andy Burnham reaffirmed his commitment to a diplomatic solution over the future of the U.S.–British military installation on Diego Garcia, the largest island of the Chagos archipelago in the Indian Ocean.

Joint effort with Mauritius and the United States

Burnham spoke with Mauritian President Navin Ramgoolam, emphasizing that the United Kingdom will continue to collaborate with both Mauritius and the United States to ensure the base remains fully operational and that British national security is protected. The conversation, detailed in a Downing Street readout, highlighted the leaders’ intention to keep close contact and to have their foreign ministers meet at the United Nations General Assembly in New York later this week.

Background on the Chagos treaty

Last year Britain signed a treaty ceding sovereignty of the Chagos Islands to Mauritius after more than two centuries of British administration. Under the agreement, the United Kingdom retains a 99‑year lease on Diego Garcia, allowing the United States to continue using the strategic military facility. However, the domestic legislation required to give effect to the hand‑over has stalled in Parliament, largely because of opposition from the United States.

Trump’s criticism and the path forward

U.S. President Donald Trump has described the treaty as a “big mistake,” arguing that the deal could jeopardize the operational security of the base. While his remarks reflect concern, the Trump administration has also signaled a willingness to work with its allies to find a mutually acceptable arrangement. Burnham’s outreach to Mauritius and his pledge to coordinate with Washington demonstrate a pragmatic approach that aligns with the United States’ interest in maintaining a robust defense posture in the Indo‑Pacific region.

Parliamentary hurdles

Although the treaty with Mauritius is already signed, the British Parliament must still pass the implementing bill. Critics in the House have raised questions about the long‑term implications of the lease and the sovereignty transfer, but supporters argue that retaining the base secures a vital strategic asset for the United Kingdom and its allies.

Implications for regional security

Diego Garcia remains a cornerstone of U.S. and British power projection, providing a forward operating location for naval and air operations across the Indian Ocean. A stable agreement that respects both Mauritian sovereignty and the operational needs of the base would reinforce the security architecture that deters aggression and protects trade routes vital to global commerce.

Looking ahead

The upcoming meeting of the foreign ministers at the UN General Assembly will be a key opportunity to iron out the details of the arrangement. Burnham’s proactive diplomacy, coupled with continued dialogue between Washington and London, aims to resolve the legislative impasse and preserve the strategic benefits of the Diego Garcia installation for years to come.

Original reporting: Appleton, WI News Feed (HLL/CB) — read the source article.