Argentine President Javier Milei has announced plans to establish a military base as Buenos Aires takes a tougher position in its longstanding dispute with Britain over the Falkland Islands.
Milei also threatened sanctions against companies seeking to exploit the waters surrounding the archipelago for economic purposes without authorisation from the Argentine government. The measures would add economic pressure to Argentina’s campaign over sovereignty of the islands, which have remained at the centre of a decades-old dispute between Buenos Aires and London.
“We will use all the diplomatic, economic and legal means of the state to deter state and non-state actors who violate our sovereignty,” Milei said in a televised address.
The proposed military base represents a further escalation in Argentina’s approach, extending its response beyond diplomatic pressure and potential economic sanctions. Milei’s government is seeking to use state powers to deter activities around the islands that it regards as violations of Argentine sovereignty.
The announcement also comes at a potentially significant moment in the international dimension of the dispute. US President Donald Trump has questioned the longstanding US position on the Falkland Islands dispute between Argentina and Britain, raising uncertainty over Washington’s approach.
“I always review every position,” Trump told reporters at the White House.
The United States has officially maintained a neutral position on the dispute. In practice, however, Washington has recognised British administration of the Falkland Islands.
Trump’s comments therefore introduce a new element into a dispute in which the US position has previously provided a measure of continuity. His statement that he regularly reviews positions leaves open the possibility of a change in Washington’s approach, although no such change is stated in the source.
For Buenos Aires, the combination of a proposed military base and threatened sanctions signals a determination to reinforce its sovereignty claims through multiple forms of state action. Milei has explicitly placed diplomatic, economic and legal measures alongside the proposed military presence as instruments for deterring activities that Argentina considers a challenge to its sovereignty.
The threatened sanctions would target companies that seek to economically exploit the waters around the archipelago without permission from the Argentine government, potentially placing commercial activity in the disputed area under greater pressure.
The dispute has endured for decades between Argentina and Britain, with the Falkland Islands remaining administered by Britain despite Argentina’s continuing sovereignty claim.
Milei’s latest announcement consequently brings together two developments: a more assertive Argentine strategy and renewed uncertainty over the position of the United States.
While Argentina seeks to strengthen its response through military, economic, diplomatic and legal measures, Trump’s decision to question Washington’s established position has introduced an additional element of uncertainty into the dispute.
For now, Milei’s message is clear: Buenos Aires intends to use the full range of state measures at its disposal to deter what it regards as challenges to Argentine sovereignty, while Washington’s longstanding approach is once again under review.

