WASHINGTON/DAVOS, Switzerland/OSLO - US President Donald Trump said Tuesday he will not attend an emergency Group of Seven summit proposed by French President Emmanuel Macron.

Ahead of his trip to the World Economic Forum in Davos, Switzerland, Trump spoke at a White House press briefing marking the one-year anniversary of his second term, saying he already has "a lot of meetings" scheduled in Davos, including discussions related to Greenland.

"I have meetings with the people that are directly involved," Trump said amid heightened tensions with European leaders after he threatened extra tariffs on a number of European countries unless a deal is reached for the United States to acquire Greenland.

"He's a friend of mine. He's a nice guy. I like Macron, but he's not going to be there very much longer, as you know," Trump said of the French president, whose term is set to end in 2027.

At the briefing, Trump also questioned whether NATO allies would help defend the United States.

"The big fear I have with NATO is we spent tremendous amounts of money with NATO, and I know we'll come to their rescue, but I just really do question whether or not they'll come to ours," he said.

Trump reiterated that the United States needs Greenland for national security.

Asked how far he is willing to go with Greenland, Trump said: "You'll find out." 

'Anti-coercion mechanism'

French President Emmanuel Macron said Tuesday that the European Union (EU) "should not hesitate" to deploy its anti-coercion mechanism in response to the US tariff threats linked to Greenland.

Macron made the remarks at the World Economic Forum annual meeting in Davos, arguing that Europe must become "more realistic" in defending its interests as global competition intensifies and rules-based governance weakens.

Addressing rising trade tensions, Macron criticized the United States for an "endless accumulation of new tariffs," describing the approach as "fundamentally unacceptable."

Trump's post 'disrespectful'

Trump's post of an image suggesting US control over Greenland is disrespectful, said Greenlandic Prime Minister Jens-Frederik Nielsen on Tuesday.

"We, of course, follow what is happening on social media, and it is not respectful," Nielsen said at a press conference in Nuuk, Greenland's capital. "We want dialogue through the proper channels, so that it does not take place in the press and on social media," he added.

Canada's stance

Also on Tuesday, Canadian Prime Minister Mark Carney expressed strong support for Greenland and Denmark and opposition to tariffs proposed by the United States.

Speaking at the World Economic Forum annual meeting in Davos, Switzerland, Carney said, "We stand firmly with Greenland and Denmark and fully support their unique right to determine Greenland's future."

Carney said Canada strongly opposes tariffs over Greenland and calls for "focused talks to achieve our shared objectives of security and prosperity in the Arctic."

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EU Security support package

European Commission President Ursula von der Leyen said Tuesday that the European Union stands in full solidarity with Greenland and the Kingdom of Denmark, stressing that their sovereignty and territorial integrity are non-negotiable.

In a special address at the World Economic Forum annual meeting in Davos, von der Leyen said the EU is preparing an Arctic security support package built on five pillars, including stepped-up investment in Greenland's economy and infrastructure and increased defense spending on European icebreaker capability.

"First principle: full solidarity with Greenland and the Kingdom of Denmark. The sovereignty and integrity of their territory is non-negotiable," she said.

Meanwhile, Danish Prime Minister Mette Frederiksen said on Tuesday that her country will not negotiate over its sovereignty, responding to US threats of tariffs in a dispute over Greenland.

Frederiksen noted that Denmark has never sought any conflicts. However, Denmark is now being threatened by its closest ally, both in terms of Danish territory and Greenlandic self-determination, she told the parliament.

On the tariffs the United States has threatened to impose, Frederiksen said a trade war would cost jobs on both sides of the Atlantic. "As much as we must warn against it, we must also prepare for it," she said.