urope has spent the last week rummaging around for leverage that would force U.S. President Donald Trump to back off his threats to seize Greenland from Denmark.

While Trump now says he will not be imposing planned tariffs on European allies, some politicians think they’ve found the answer if he changes his mind again: boycott the 2026 FIFA World Cup.

The quadrennial soccer jamboree, which will be hosted in the U.S., Mexico and Canada this summer, is a major soft-power asset for Trump — and an unprecedented European boycott would diminish the tournament beyond repair.

“Leverage is currency with Trump, and he clearly covets the World Cup,” said Adam Hodge, a former National Security Council official during the Biden administration. “Europe’s participation is a piece of leverage Trump would respect and something they could consider using if the transatlantic relationship continues to swirl down the drain.”

With Trump’s Greenland ambitions putting the world on edge, key political figures who’ve raised the idea say that any decision on a boycott would — for now, at least — rest with national sport authorities rather than governments.

“Decisions on participation in or boycott of major sport events are the sole responsibility of the relevant sports associations, not politicians,” Christiane Schenderlein, Germany’s state secretary for sport, told AFP on Tuesday. The French sport ministry said there are “currently” no government plans for France to boycott.

That means, for the moment, a dozen soccer bureaucrats around Europe — representing the countries that have so far qualified for the tournament — have the power to torpedo Trump’s World Cup, a pillar of his second term in office like the 2028 Olympics in Los Angeles. (Another four European countries will be added in spring after the European playoffs are completed.)

While they may not be household names, people like Spain’s Rafael Louzán, England’s Debbie Hewitt and the Netherlands’ Frank Paauw may now have more leverage over Trump than the European Commission with its so-called trade bazooka.

“I think it is obvious that a World Cup without the European teams would be irrelevant in sports terms — with the exceptions of Brazil and Argentina all the other candidates in a virtual top 10 will be European — and, as a consequence, it would also be a major financial blow to FIFA,” said Miguel Maduro, former chair of FIFA’s Governance Committee.

Several of the European soccer chiefs have already shown their willingness to enter the political fray. Norwegian Football Federation president Lise Klaveness has been outspoken on LGBTQ+ issues and the use of migrant labor in preparations for the 2022 World Cup. The Football Association of Ireland pushed to exclude Israel from international competition before the country signed the Gaza peace plan in October.

“Football has always been far more than a sport,” Turkish Football Federation President Ibrahim Haciosmanoglu, whose team is still competing for one of the four remaining spots, wrote in an open letter to his fellow federation presidents in September calling for Israel’s removal.

Trump attempted Wednesday in Davos to cool tensions over Greenland by denying he would use military force to capture the massive, mineral-rich Arctic island. But during the same speech he firmly reiterated his desire to obtain it and demanded “immediate negotiations” with relevant European leaders toward that goal. Later in the day, in a social media post, Trump said he reached an agreement with NATO on a Greenland framework.

His Davos remarks are unlikely to pacify European politicians across the political spectrum who want to see a tougher stance against the White House.

“Seriously, can we imagine going to play the World Cup in a country that attacks its ‘neighbors,’ threatens to invade Greenland, destroys international law, wants to torpedo the UN, establishes a fascist and racist militia in its country, attacks the opposition, bans supporters from about 15 countries from attending the tournament, plans to ban all LGBT symbols from stadiums, etc.?” wondered left-wing French lawmaker Eric Coquerel on social media.

Influential German conservative Roderich Kiesewetter also told the Augsburger Allgemeine news outlet: “If Donald Trump carries out his threats regarding Greenland and starts a trade war with the EU, I find it hard to imagine European countries participating in the World Cup.”

Russia’s World Cup in 2018 faced similar calls for a boycott over the Kremlin’s illegal annexation of Ukraine’s Crimean peninsula, as did Qatar’s 2022 tournament over the Gulf petromonarchy’s dismal human rights record.

While neither mooted boycott came to pass — indeed, the World Cup and the Olympics haven’t faced a major diplomatic cold shoulder since retaliatory snubs by countries for the Moscow 1980 and Los Angeles 1984 Summer Olympics — Trump’s seizure of Greenland would put Europe in a position with no recent historical parallel.

Neither FIFA, the world governing body that organizes the tournament, nor four national associations contacted by POLITICO immediately responded to requests for comment.

Tom Schmidtgen and Ferdinand Knapp contributed to this report.