BUENOS AIRES — Argentine President Javier Milei signed an emergency decree on Thursday granting the government new authority to deny entry to or expel foreigners who incite discrimination or violence against Argentines based on their nationality. The measure expands Argentina’s immigration law, enabling authorities to block, deport, or revoke visas of individuals found to have promoted hostility toward Argentina through spoken or written statements or by desecrating national symbols.

The decree came in response to what the government described as recent visible displays of hostility directed at Argentina and its citizens. The president’s office stressed that defending the nation, its people, and its symbols is non-negotiable and declared that anyone who attacks the country is unwelcome.

This development marks a significant shift for Argentina, a nation historically proud of its open immigration policies. Argentina’s Constitution encourages immigration and provides foreigners with broad civil rights, including access to public education and healthcare, alongside relatively straightforward paths to legal residency.

Officials framed the new measure as a reaction to a surge of criticism following Argentina’s loss in the recent World Cup. Controversial refereeing decisions and speculation that FIFA favored the tournament’s reigning champions and star Lionel Messi led to widespread condemnation of Argentine fans and players. What began as criticism of aggressive behavior during matches evolved into broader attacks on Argentine society, reviving long-standing grievances regarding perceived cultural and economic superiority over other Latin American countries. Online petitions calling for Argentina’s expulsion from the World Cup garnered hundreds of thousands of signatures.

Tensions escalated further after a post-final altercation involving Argentine players and staff with their Spanish counterparts. FIFA subsequently opened disciplinary proceedings against the Argentine Football Association, investigating the brawl, alleged racist abuse, and fan misconduct. The organization also launched inquiries surrounding a banner displayed by Argentine players during the semifinal win over England, which asserted Argentina’s claim to the British-controlled Falkland Islands.

President Milei, known for his libertarian stance and close alignment with former U.S. President Donald Trump, described the wave of criticism as an “anti-Argentina campaign.” Last week, he made unsubstantiated claims that left-wing governments in Brazil and Mexico, along with the U.S. Democratic Party, had financed efforts to stigmatize Argentina and undermine his administration. These remarks strained diplomatic relations with Brazil, prompting that country to recall its ambassador.

The decree clarifies that the new enforcement measures do not apply to ideological dissent or political, academic, and civic critique protected under Argentina’s Constitution. However, it remains unclear how authorities will differentiate between protected speech and impermissible hate speech, or the extent to which officials will monitor non-citizens’ social media activity. The level of enforcement, particularly regarding tourists and long-term foreign residents, also awaits further definition.