U.S. President Donald Trump said on Thursday the Board of Peace he proposed is withdrawing its invitation to Canadian Prime Minister Mark Carney for Canada to join the body.

"Please let this Letter serve to represent that the Board of Peace is withdrawing its invitation to you regarding Canada's joining," Trump wrote in a letter-styled post addressed to "Dear Prime Minister Carney" on his social media platform Truth Social.

The move followed a series of public exchanges between the two leaders during the World Economic Forum in Davos. Earlier on Thursday, Carney rejected Trump's claim that Canada relies on the United States after returning from Davos, Switzerland, without meeting with the U.S. president.

"Canada and the United States have built a remarkable partnership. In the economy, in security and in rich cultural exchange," Carney said in Quebec City. "But Canada doesn't live because of the United States. Canada thrives because we are Canadian."

At Davos, Carney warned of a "rupture" in the global order, voicing support for Greenland and Denmark and criticizing the use of tariffs and economic pressure by major powers. Trump, speaking at the forum, said, "Canada lives because of the United States," and called for Carney to "remember that" in his next statement.

Since returning to the White House in January 2025, Trump has intensified trade and political frictions with Canada, imposing broad tariffs and repeatedly suggesting that Canada become the 51st U.S. state.