Hundreds of Argentina fans filled Underground Atlanta for a rally Tuesday, creating a vibrant atmosphere with drums and music ahead of the highly anticipated World Cup semifinal match against England. The gathering, which drew an estimated 10,000 people according to one onlooker, featured draped flags, vendors selling team merchandise, and impromptu barbecues.

This is the second such gathering of Argentine supporters, known as hinchas, in Atlanta. The passionate display offered a preview of the reception awaiting the English team. Flags displayed at the rally included imagery of football icon Diego Maradona and, notably, the Falkland Islands. FIFA has since banned any Falklands-related flags from being displayed at the stadium during the match.

Security was visibly heightened, with controlled entry and exit points and bag searches conducted by police K-9 units. A brief clash occurred between fans of rival Argentine clubs San Lorenzo and Huracan, involving punches and thrown tables, but it quickly subsided. Despite a heavy downpour, the fans' spirits remained high, with festivities planned to continue into the early morning.

The upcoming semifinal has been classified as the "highest risk" match of the World Cup following a joint meeting of the FBI, FIFA, and local law enforcement officials on Monday. Concerns over the historical divide between Argentina and England, and potential clashes between rival supporters, were central to the discussions.

Security measures for the match will include separate entry gates for fans of both nations. While there will be no segregation within the stadium itself, officials plan to pay special attention to concourse areas where supporters are expected to mingle. Videos have already circulated online depicting altercations between Argentine and English fans during earlier stages of the tournament.

Argentina's coach, Lionel Scaloni, has urged calm, even as his players have reportedly sung songs referencing the Falkland Islands throughout the tournament. The islands remain a point of contention, with Argentina having invaded them in 1982, leading to a conflict that resulted in nearly 1,000 deaths. Argentina's foreign minister recently reiterated the nation's claim over the territory, a stance that has been rejected by British officials.

Fans like Oscar, from Mar del Plata, described their journey to Atlanta as a "movement," with supporters traveling long distances and saving for years for the opportunity to attend. The rally in Underground Atlanta concluded with festivities continuing late into the night.