Argentina's players celebrated a World Cup semi-final victory over England by displaying a banner claiming the Falkland Islands ('Las Malvinas son Argentinas'), reigniting the decades-old territorial dispute. UK officials including PM Keir Starmer called for FIFA to investigate and potentially discipline the players for the political statement, which violates FIFA's rules against political messaging at matches. This reflects broader tensions between Argentina and the UK over the islands — a flashpoint since the 1982 war — and shows how international sports moments can become lightning rods for unresolved geopolitical conflicts.