Diplomatic tensions between Belgium and the United States have intensified after sharp remarks by the US ambassador sparked outrage across the

Belgian political spectrum.

Belgian Health Minister Frank Vandenbroucke said on Monday that the next steps in the dispute rest with the country’s foreign affairs authorities, after what he described as unacceptable interference by US Ambassador Bill White.

Speaking on Radio 1, Vandenbroucke accused the ambassador of having “crossed several red lines”, adding that such conduct was “hard to accept” from a senior diplomat.

The row escalated after White posted — and later deleted — an Instagram message attacking Vandenbroucke and Conner Rousseau, leader of the Flemish socialist party Vooruit. In the post, White referred to the 1990s Agusta corruption scandal, alleging that Vandenbroucke had once suggested burning illegal party funds. Vandenbroucke has consistently denied any wrongdoing and was never prosecuted in connection with the case.

White also dismissed both politicians as “fallen figures” and went further by claiming that Rousseau would no longer be permitted to travel to the United States. The ambassador linked this alleged ban to Rousseau’s public criticism of political developments in the US.

Vandenbroucke reacted strongly, saying it was unacceptable for a foreign diplomat to interfere in Belgium’s democratic debate. “In a democracy, you are free to express political opinions,” he said. “An ambassador cannot decide who may or may not enter his country because of that.”

He also defended Belgium’s judicial system, stressing that judges operate independently of political pressure. The diplomatic dispute initially flared last week when White criticised a judicial investigation in Antwerp into religious circumcisions, branding it anti-Semitic and urging the Belgian government to intervene.

According to Vandenbroucke, the controversy goes beyond personal attacks or isolated comments. He warned that the United States appears to be challenging Europe’s broader social welfare model, including its healthcare systems. “Europe must stand united to defend its solidarity-based healthcare,” he said.

Belgium’s Foreign Minister Maxime Prévot has already weighed in, condemning the idea that an elected lawmaker could be denied entry to another country for exercising free speech. Calling for calm and de-escalation, Prévot confirmed that his ministry would seek clarification from US authorities.

For now, Vandenbroucke says, the ball is firmly in the foreign minister’s court as Belgium weighs its response to an increasingly fraught diplomatic standoff. Photo by The Jacques Delors Institute, Wikimedia commons.