Argentina accuses UK warship of ‘illegal’ incursion hours after World Cup win over England

Argentina has accused a British Royal Navy warship of carrying out an “illegal journey” into its waters, just hours after the national team defeated England 2-1 in the semi‐final of the 2026 World Cup.

Foreign Minister Pablo Quirno said the patrol vessel HMS Medway entered Argentine waters earlier in July without formal notification, describing the move as a “military incursion” and confirming that Buenos Aires had lodged a formal protest with the UK.

The row has reignited long‐simmering tensions between the two countries over the Falkland Islands – known in Argentina as Las Malvinas – and comes amid a wave of nationalist sentiment following Argentina’s victory over England.

Argentina files official protest

Quirno told Argentine media, citing information reported by the UK’s Guardian newspaper, that HMS Medway entered waters claimed by Argentina this month without prior approval.

He said a “formal note of protest” had been delivered to the British embassy in Buenos Aires to set out Argentina’s “strongest objections” to what the government sees as a breach of its sovereignty.

According to the Argentine government, the incursion took place in early July, before the World Cup semi‐final, but was made public soon after the football match, which has further charged the atmosphere between the two nations.

HMS Medway is a River Batch 2 offshore patrol vessel, normally based around the Falkland Islands in the South Atlantic, an area at the heart of the decades‐long territorial dispute.

Downing Street insists voyage was lawful

The UK government has rejected Argentina’s accusations, insisting that the voyage was both lawful and properly notified in advance.

A Downing Street spokesperson said: “The facts here are that we notified the Argentine government in advance that HMS Medway would undertake a routine logistical visit to Chile, between 5 and 8 July, in support of British scientific survey operations in the Antarctic, which will provide essential stores and supplies for the continuation of scientific research in Antarctica.”

“The Royal Navy always operates in full compliance with international law. The transit from the Falkland Islands to Chile was conducted via the shortest practical route, taking into account operational safety and weather factors, to ensure timely delivery,” the spokesperson added.

British officials maintain that the ship’s movement was a standard support mission tied to Antarctic research and fell fully within international maritime norms.

Football, flags and the Falklands

The diplomatic clash comes against the backdrop of Argentina’s emotionally charged World Cup semi‐final against England, a fixture already laden with historic and political overtones.

After Argentina’s 2-1 win, several players were seen holding a banner reading “Las Malvinas son Argentinas” (“The Falkland Islands are Argentine”), reviving the sovereignty dispute on a global sporting stage.

Tensions between London and Buenos Aires over the Falklands have persisted since the 1982 conflict, when Argentine forces invaded the islands and were later repelled by a British task force. The war ended with a British victory but left deep scars in Argentina, where the issue remains highly sensitive.

Buenos Aires continues to claim sovereignty over the islands, which lie about 8,000 miles (around 12,900km) from the UK but only roughly 300 miles (about 480km) off the Argentine mainland. The UK, meanwhile, maintains that the islands are a British Overseas Territory and that the wishes of the islanders – who have repeatedly expressed their desire to remain British – must be respected.

Political rhetoric hardens in Buenos Aires

Senior Argentine officials have used the World Cup run, and particularly the meeting with England, to amplify their stance on the Falklands.

Before the semi‐final, Vice President Victoria Villarruel described England as “الغزاة” and “القراصنة المغتصبون” – terms meaning “invaders” and “rapist pirates” – in comments that drew strong reactions domestically and internationally.

After the match, she posted a celebratory message about the victory, accompanied by a video of Argentine soldiers, further intertwining contemporary sport with memories of the 1982 war.

The latest dispute over HMS Medway’s movements is likely to add to the strained atmosphere between the two governments, even as both sides publicly insist they are acting within their rights – Argentina in defending what it sees as its territorial integrity, and the UK in pursuing what it insists are routine naval and scientific operations in the South Atlantic.