Greenland is protected by NATO’s Article 5 which invokes mutual defence in the case of any armed attack or invasion, the Finnish foreign minister has said. According to Elina Valtonen, Article 5 is extended to Greenland as an autonomous territory of Denmark,

The top European Union military official, Robert Brieger, said it would make sense to station troops from EU countries in Greenland, according to an interview with Germany's Welt am Sonntag published on Saturday,

Rather than appeal to Denmark’s goodwill, President Trump’s rhetoric risks trapping the U.S. in a cycle of increasing coercion.

“Mr. Prime Minister, have you spoken to President Trump yet?” I asked as he fled a lunchtime news conference on Tuesday in the capital city, Nuuk (population 20,000). Egede, who is 37, wore a green zip-up sweater, stared straight ahead, and was walking toward me. He said nothing.

What if Denmark invoked Article 5?

In 1865, in the wake of the Civil War, the U.S. began looking to expand its influence on the world stage. This happened at precisely the moment when Russia, having just lost the Crimean War, was seeking to counterbalance British power in the Pacific. This proved to be the perfect recipe for American expansion in the Arctic.

The call did not go well and Trump was aggressive and confrontational with Danish Prime Minister Mette Frederiksen, FT reported.

Anders Vistisen, a Danish member of the European Parliament, has told U.S. President Donald Trump to "f*** off" after Trump again expressed interest in purchasing the island of Greenland. Newsweek has contacted the White House for comment via email.

While speaking onboard the Air Force One on Saturday Trump claimed that Arctic Island’s 57,000 residents “want to be with" the US

While President-elect Donald Trump has been making confounding statements about the United States acquiring Greenland by diplomacy, money or force, the world’s largest island (ahem, an autonomous territory of our NATO ally Denmark) has already been rising as an off-the-path tourist destination.

From the Reconstruction era to the Cold War, multiple administrations have tried (and failed) to acquire the Arctic island. Here’s why Greenland has always remained out of reach—and why it always mattered so much.