The Chagos Islands are a group of more than 60 islands in the Indian Ocean that make up the British Indian Ocean Territory (BIOT), about 300 miles (500km) south of the Maldives.
Misley Mandarin, a BIOT citizen, told Politics London: “It seemed like the Labour government (want to) steam ahead with the treaty without considering the most important key component of that deal, which is the Chagossians.
“And this makes us very angry. I’d rather die for my country than my country go to Mauritius.
“This is the type of angriness in me right now, and it’s shared with all the Chagossians right now.”
The UK bought the Chagos Islands for £3m in 1968 and forced the removal of Chagossians from the archipelago over the next five years to make way for a UK-US armed forces base.
Many of them moved to Mauritius, the Seychelles and the UK.
Vanessa Mandarin, also a BIOT citizen, told the programme: “We want the self-determination to dedicate the future of our homeland, what we want to do with our homeland.
“And we want the Chagossians to be first.
“We don’t want another state to come and talk on our behalf. We will be challenging, we will not surrender. We will be challenging until the end.”