US President Donald Trump said he will impose a 200 per cent tariff on French wines and champagnes, a move he claimed would push French President Emmanuel Macron to join Trump’s Board of Peace initiative aimed at resolving global conflicts, and also said that he had a "very good" telephone call with Nato secretary general Mark Rutte concerning Greenland.

When asked by a reporter about Macron saying he will not join the board, Trump said, "Did he say that? Well, nobody wants him because he will be out of office very soon."

"I'll put a 200% tariff on his wines and champagnes, and he'll join, but he doesn't have to join," Trump said.

France intends to decline the invitation to join the initiative, at this stage, a source close to Macron said on Monday.

Meanwhile, Trump said in a post on Truth Social: "Greenland is imperative for National and World Security. There can be no going back — On that, everyone agrees!"

Trump originally proposed establishing the Board of Peace when he announced last September his plan to end the war in Gaza. But an invitation sent to world leaders last week outlines a broad role ending conflicts globally.

A draft charter sent to about 60 countries by the U.S. administration calls for members to contribute $1 billion in cash if they want their membership to last more than three years, according to the document seen by Reuters.

Governments reacted cautiously on Sunday to Trump's invitation, a plan that diplomats said could harm the work of the United Nations.

On Monday, Trump also said he has invited Russian President Vladimir Putin to be a member of the peace board. "He's been invited," Trump said.