The move comes after President Donald Trump voiced his desire to acquire Greenland and refused to rule out using military force.

Interest in buying Greenland has "popped up from time to time in American politics," Tom Høyem, Denmark's former minister to Greenland, told ABC News in an interview.

What the visiting journalists weren’t told—nor were many of the soldiers living at the station, which could house up to 200—was that Camp Century was a cover for a secret Cold War Army project. Unknown even to Greenland’s Danish government,

Some of Trumps threats to take over Greenland, Canada, and the Panama Canal are based on actual U.S. strategic goals. Others are just idiotic.

Denmark is increasing military spending in the North Atlantic amid President Donald Trump’s bid to have Greenland sold or ceded to the United States.

Denmark said on Monday it would spend 14.6 billion Danish kroner ($2.05 billion) boosting its military capabilities in the Arctic – a decision that comes amid continuing furor following US President Donald Trump’s renewed interest in controlling Greenland,

Donald Trump wants the United States to buy Greenland for its strategically vital resources, to bolster US security and give China a bloody nose.

The president is increasingly threatening other countries with tariffs for issues that have little to do with trade.

Greenland, thrown into the geopolitical limelight amid renewed interest from Donald Trump, may still need several years to arrange a referendum on independence, according to a senior lawmaker in the Danish parliament.

Yet while Greenland may be sitting on mineral riches, any "gold rush" continues to be slow to materialise. The economy, which has an annual GDP of just over $3bn (£2.4bn), is still driven by the public sector and fishing. And the territory also relies on an annual $600m subsidy from Denmark.

The EU and Nato have taken a vow of silence over Greenland after Denmark requested its key allies refrain from reacting to Donald Trump’s threats to seize the Arctic island.