Argentina says it will block Falklands offshore oil exploitation in sovereignty dispute

Argentina's foreign minister has said the government will try to stop the Falkland Islands from exploiting offshore oilfields, framing the move as part of a peaceful strategy to assert sovereignty over the territory. Pablo Quirno made the remarks at a thinktank event in Buenos Aires attended by the British ambassador to Argentina. The comments add a fresh diplomatic edge to a long-running dispute over the islands and their surrounding waters.

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Quirno said President Javier Milei's government had a strategy for the "peaceful" assertion of Argentine sovereignty. He accused the British government of refusing to enter negotiations over the islands and of taking unilateral steps over natural resources in maritime areas that Argentina says are part of the dispute. He added that preventing the exploitation of what he described as Argentine resources was part of a broader effort to recover full sovereignty through peaceful means.

The event was organised by the Argentine Council for International Relations, and the British ambassador, David Cairns, was among those in the audience. Quirno was photographed speaking while Cairns listened, and the ambassador left shortly after the foreign minister returned to his seat. The timing of the remarks follows renewed Argentine pressure over the Sea Lion project, an oil development in the North Falkland Basin.

The issue matters because offshore energy development has become closely tied to the wider sovereignty dispute between Argentina and the United Kingdom. Milei told the UN General Assembly last month that the international body had failed Argentina, and he described the Sea Lion project as an unlawful act. Argentina has also cited a 1976 UN resolution that it says ordered both sides to avoid unilateral action on the islands.

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On 28 September, Milei gave the UK a two-week deadline to stop the oil project or face arbitration and a binding decision under annex VII of the UN Convention on the Law of the Sea at the International Tribunal for the Law of the Sea. The United Nations does not officially recognise either British or Argentine sovereignty over the archipelago and says the status remains disputed. It has repeatedly urged both governments to seek a peaceful solution to the dispute, which escalated into conflict in 1982.

What remains unclear is how Argentina intends to act on Quirno's warning and whether the latest diplomatic pressure will change the course of the offshore project. The British government has not been reported in the supplied material as responding to the remarks. The next developments to watch are any formal legal steps, any reaction from London, and whether the dispute moves further into international arbitration.

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