European leaders on Saturday pushed back against President Donald Trump’s announcement that the United States will impose sanctions on several European nations following the deployment of small military contingents to Greenland, as Trump continues to press for U.S. acquisition of the Arctic territory.

Trump said he will impose a 10% tariff on goods entering the United States from Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland. The tariffs are set to take effect on February 1 and will rise to 25% on June 1. Trump said the measures will remain in place until the United States is able to purchase Greenland.

Greenland is a self-governing territory within the Kingdom of Denmark. Trump first floated the idea of acquiring the mineral-rich island during his first term in office, a proposal repeatedly rejected by Danish and Greenlandic officials.

European Commission President Ursula von der Leyen said European Union member states would respond with unity, emphasizing shared security interests in the Arctic.

“We have consistently underlined our shared transatlantic interest in peace and security in the Arctic, including through NATO,” von der Leyen wrote on X. She said the Danish-led exercise in Greenland was pre-coordinated with allies to strengthen Arctic security and posed no threat.

“Tariffs would undermine transatlantic relations and risk a dangerous downward spiral,” she added. “Europe will remain united, coordinated and committed to upholding its sovereignty.”

EU foreign policy chief Kaja Kallas warned that rising tensions between Washington and its European allies benefit U.S. adversaries.

“China and Russia must be having a field day,” Kallas wrote on X. “They are the ones who benefit from divisions among allies. If Greenland’s security is at risk, we can address this inside NATO.”