Downing Street backed calls for Fifa to look into the matter, with the prime minister’s official spokesperson saying the World Cup may not be Britain’s, but the Falkland Islands are, and that the UK’s commitment to them would not waver.
Media reports say Argentina’s President Javier Milei deemed the players’ actions understandable and legitimate.
However, he also told Radio El Observador that events on the pitch fall outside the realm of diplomacy.
He added that the Malvinas are Argentine and would be recovered through intelligent, diplomatic means.
In 1982, while Argentina was ruled by a military junta led by General Leopoldo Galtieri, its forces invaded the islands, located about 300 miles off the country’s east coast.
The 74-day conflict from April to June 1982 left 649 Argentine and 255 British service personnel dead, along with three islanders.
In 2013, Falkland Islanders voted overwhelmingly to remain a UK overseas territory.
Of the 1,517 ballots cast during the two-day referendum—with turnout above 90%—1,513 supported that status, and just three opposed it.