UK Prime Minister Andy Burnham told the House of Commons on Wednesday that his government "will always respect the rights of the Falkland Islanders to choose to be British" and pledged Britain "will be relentless in defending that" -- a direct response, during Prime Minister's Questions, to a sharper line President Milei took days earlier over the disputed islands.
In a televised national address on September 3, Milei said the roughly 3,500 people living on the islands, as "an implanted population in usurped territory," have no legitimate right to self-determination -- "no tienen derecho legitimo a la autodeterminacion" -- a harder position than his government had previously staked out, since it drops any acknowledgment of islanders' own preferences. In the same address, Milei announced sanctions on oil companies operating near the islands (a campaign that has since grown to 60 sanctioned parties, as this site has reported), a planned naval base in Tierra del Fuego, and a new National Security Council, framing the moment as an unprecedented opportunity for Argentina's sovereignty claim.
The exchange in Parliament also pulled in an unrelated but politically loaded dispute: the UK deal to transfer the Chagos Islands to Mauritius, signed in May 2025 under Burnham's predecessor, Keir Starmer, and inherited as his own government's policy. Conservative leader Kemi Badenoch used it to attack Burnham directly, calling the Chagos handover "a weak decision" and adding: "it is no wonder Argentina is now threatening the Falklands" as a result. Burnham did not concede the point, telling MPs "we are not going to surrender our base at Diego Garcia" -- the remaining UK-US military installation in the Chagos Archipelago -- and said Britain would "never" give up the Falkland Islanders' right to remain British.
Milei's escalation followed comments from President Trump days earlier that added to Argentina's sense of momentum. In a GB News interview published September 3, Trump declined to reaffirm unconditional US support for Britain in a Malvinas (Falkland Islands) conflict, saying he "always review[s] every position," and separately criticized Britain for declining to join US-led strikes on Iran, calling the country's absence from that campaign "pretty sad." Argentina's government has pointed to Trump's remarks as evidence that Washington's decades-long neutrality on the sovereignty question is softening, though Trump did not commit to any change in US policy, and no such change has been formally announced.
Keir Starmer, the prime minister referenced both in Trump's Iran complaint and in the original Chagos deal, resigned in July amid a Labour Party leadership crisis and was succeeded by Burnham, the former mayor of Greater Manchester -- meaning it is Burnham's government, not Starmer's, now managing both disputes at once.
Note: the name "Falkland Islands" is highly contested by Argentina, which refers to the territory as the Malvinas. The Ushuaia Times uses "Malvinas" in its reporting for this reason.