Diego Garcia Military Base and British Indian Ocean Territory Bill

Debate between Anna Gelderd and Katie Lam

Consideration of Lords amendments
Tuesday 20th January 2026 Commons Chamber

[Anna Gelderd (South East Cornwall) (Lab)]

I align myself with the comments made by my hon. Friend the Member for Halesowen (Alex Ballinger).

In South East Cornwall, we may be geographically removed from Diego Garcia, but we are closely connected to the realities of our national defence. Torpoint has the third highest number of veterans of any community, with over 14% of people having served. Residents across the area have written to me about the importance of this issue. His Majesty’s Naval Base Devonport is the largest naval base in western Europe and a key part of our national defence capability, so we are an area that understands the importance of national defence and its complexities. We know that it requires long-term thinking and joint working with multiple allies, each of whom understandably has its own national interests in mind.

Does the Minister agree that this matter is about not just international law, but securing Britain’s ability to defend itself, including control over key capabilities such as berthing submarines, electromagnetic defence and force mobility? Given that 85% of the Chagos negotiations took place under the Conservatives, does the Minister know why the Tories started negotiations when they were in government if they did not think there was a threat to the crucial base?

As well as defence, South East Cornwall has deep ties to our marine environment, with many local livelihoods dependent on the sea. Our local economy relies on a healthy and resilient marine environment, so it is important to recognise the role of that environment. The Chagos marine protected area was established in 2010. Through the Blue Belt programme, the UK has continued to play a leading role in enhancing marine protection across the overseas territories. For Members who may not be aware, this is a brilliant programme that works with local communities to understand biodiversity, manage impacts and build a deeper understanding between people and nature. The marine protected area is home to extraordinary marine life. Research has shown that it contributes to climate resilience at a global scale.

Mauritius has committed to protecting that marine environment, which I welcome. However, as an island state located miles from the base, I have concerns about the practicalities of monitoring and enforcing protections against harmful activity. What provisions in the Bill and the treaty will safeguard the existing marine protected area and ensure that effective enforcement remains in place to prevent harm to the ecosystem and the species that depend on it?

[Katie Lam (Weald of Kent) (Con)]

This Government’s handover of the Chagos islands is nothing short of a disgrace. British taxpayers are being asked to stump up billions of pounds to pay for the privilege of giving away something we own—a strategically vital territory—to a close ally of the Chinese Communist party. And why? All because of an entirely advisory opinion issued by politicised judges in the International Court of Justice.

People across the country are rightly asking why on earth any British Government would agree to a deal that diminishes our strategic capabilities and costs us billions in the process, particularly when the Government are already putting the squeeze on people’s finances in so many ways. The Government’s arguments for doing so were already thin, and they become even thinner when we consider the amendments before us today.