Argentina's Foreign Minister Pablo Quirno said that preventing the Falkland Islands from exploiting their offshore oil is part of a strategy to recover sovereignty peacefully, in a speech to an audience that included the British ambassador.

Quirno accused the UK of refusing to negotiate and of advancing the Sea Lion project in the North Falkland Basin. 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 (UNCLOS).