US President Donald Trump has repeatedly said the US should take over Greenland, arguing that it would benefit his nation's security.
His demands have been rejected by the island's leaders and by Denmark, of which Greenland is a semi-autonomous territory.
Trump repeated previous calls for the US to take over Greenland following the US military raid on Venezuela, during which its president Nicolás Maduro and his wife were seized and removed to New York.
The day after the operation, Trump told reporters: "We need Greenland from a national security situation. It's so strategic. Right now, Greenland is covered with Russian and Chinese ships all over the place."
Greenland's Prime Minister Jens Frederik Nielsen responded by saying "that's enough now", and described the idea of US control over the island as a "fantasy".
