Diego Garcia Military Base and British Indian Ocean Territory Bill

Julian Lewis Excerpts

2nd reading
Tuesday 9th September 2025 Commons Chamber

[Tim Roca]

I thank the hon. Member for raising that important aspect. We should all be honest that, as was put powerfully by my hon. Friend the Member for Crawley (Peter Lamb), our country’s history with the Chagossians has been very poor—if we look at some of the diplomatic cables from the 1960s, we see that disgraceful language was used—but I was reassured by what Ministers said about the preamble of the treaty and some of the provisions put in place.

It is a matter of fact that the previous Government were in negotiations with Mauritius over this issue. That was the case, and there will have been motivations for their doing that. I am worried about how our other overseas territories are being dragged into this. A couple of months ago, I was in Gibraltar with colleagues who privately told me they were horrified that party politics were being played with their communities. I am glad to see that Gibraltar’s Chief Minister was clear on the record that there was “no possible read across” to Gibraltar, and the Governor of the Falklands said that the

“historical contexts…are very different.”

I am confident that we meet the three tests.

[Sir Julian Lewis (New Forest East) (Con)]

Will the hon. Member give way?

[Tim Roca]

No, I am afraid that I will not.

In closing, I believe that the three tests have been met: the treaty meets our national security requirements, it has the backing of our allies, and it comes at a reasonable cost. It would be very dangerous for us to dither or delay any longer in view of the potential threat to that base.

[Sir John Whittingdale (Maldon) (Con)]

It is a pleasure to take part in the debate. The Foreign Affairs Committee, on which I sit—I welcome two of my Labour colleagues from the Committee and my hon. Friend the Member for Chester South and Eddisbury (Aphra Brandreth) to the debate—has had the opportunity to question the Minister, the hon. Member for Cardiff South and Penarth (Stephen Doughty), although I was not entirely persuaded by some of his answers. That is not to say that the Intelligence and Security Committee, which has other powers, is not an appropriate body for looking at some aspects—indeed, the Defence Committee should also do so.

The one thing that I think everybody agrees on is the importance of Diego Garcia and the Chagos islands to the United Kingdom. My right hon. Friend the Member for South West Wiltshire (Dr Murrison) quoted Admiral Lord West, his former boss—he was, of course, a Minister in the last Labour Government and the security adviser to the Prime Minister—who said:

“It is no exaggeration to say that Diego Garcia—the largest of the Chagos Islands—hosts the most strategically important US air and logistics base in the Indian Ocean and is vital to the defence of the UK and our allies.”

I have no doubt that Labour Members share that sentiment, but perhaps not his later comment, which was:

“An agreement with Mauritius to surrender sovereignty over the Chagos Islands threatens to undermine core British security interests, and those of key allies, most notably the United States.”

We do need to listen to the warning he gave.

[Sir Julian Lewis]

Admiral Lord West has been referred to twice so far in the debate. My right hon. Friend may be unaware that Admiral Lord West had a letter published in the national press on 28 May in which he talked about the

“disgraceful decision to hand over ownership of the Chagos archipelago”.

He added:

“I do not accept that the move is ‘absolutely vital for our defence and intelligence’, as the Prime Minister claims.”

I wonder what Government Back Benchers who have been slavishly reading their scripts make of that from someone of that calibre—a former director of Defence Intelligence.

[Sir John Whittingdale]

My hon. Friend is absolutely right—

--- Later in debate ---

[Sir John Whittingdale]

He is nodding. He gave me a very firm assurance that that was not the case. That is of some reassurance, but it does not go far enough. The fact that we are no longer able to carry out actions from our own base without then having to notify Mauritius, and presumably take note of any objection it has, represents a limitation that could well affect decisions as to where to deploy assets.

[Sir Julian Lewis]

rose—

[Sir John Whittingdale]

I shall give way to my right hon. Friend, who is an expert on these matters.

[Sir Julian Lewis]

If this means that we do not have to inform Mauritius in advance of a direct armed attack from the base, presumably it means that we have to inform it as soon as possible after such an attack. If such an attack were an overt attack, Mauritius would presumably know about it already because everyone would have seen it, so this rather suggests that we might have to inform it if there had been some sort of covert attack that other people had not seen and that it would otherwise not know about. Is that a satisfactory situation?

[Sir John Whittingdale]

My right hon. Friend makes a fair point. A requirement for us to tell the Mauritians what has been happening from the base is exactly what might influence decisions as to its use for operations of the kind he describes. The Minister gave evidence to the Committee on this point just a few days, I think, after the Americans had launched their attack on Iran, which did not involve Diego Garcia. That was something I raised with the Minister.