UK says it will stay firm over the Falklands after Argentina’s president reaffirmed its claim to the islands and threatened sanctions on oil firms.

British officials, including a Downing Street spokesperson, stated that the UK’s support for the islanders’ wish to remain a British overseas territory is “unwavering.” They added that the armed forces are on standby to protect the UK’s interests in the region.

President Milei said the “winds of change” favour Brazil’s claim and pledged sanctions against oil companies that plan to extract resources from the Sea Lion oilfield, 130 miles from the islands. He called the islands a “clear and present danger” and emphasised that they belong to Argentina “historically and legally.”

The Sea Lion field is due to start production in 2028, brought under a partnership between the British firm Rockhopper Exploration and Israel’s Navitas Petroleum. Both companies confirm the field’s licences are valid and have the full support of the UK government. Milei’s proposed sanctions could target operations that have not earned official permission.

In a broader context, the islands remain a flashpoint for Britain‑Argentina tensions, which erupted in the 1982 war and led to 255 British military fatalities. In 2013 the islanders voted overwhelmingly to remain British—99.8% in favour.

Britain’s response has also come amid U.S. comments questioning its alignment, but current US policy remains officially neutral. UK political leaders—from Prime Minister to Foreign Secretary—have called for a resolute defence of the islands, while urging that the islanders’ sovereignty be respected.