COPENHAGEN - Greenland, which President Donald Trump wants to annex on grounds of US national and international security, is a self-governing Danish territory in the Arctic covered in ice, with untapped mineral resources and geostrategic importance.
"We have to have it," Trump reiterated on Wednesday, ahead of Vice President JD Vance's visit on Friday to the US Pituffik Space Base on Greenland's northwestern coast.
Closer to New York
Greenland is an autonomous territory but remains dependent on Copenhagen for law enforcement, monetary policy, foreign affairs, defence and security policy.
However, with its capital closer to New York than Copenhagen, Greenland is in the United States' "zone of interest", historian Astrid Andersen, of the Danish Institute of International Studies, told AFP.
"During the war, while Denmark was occupied by Germany, the US took over Greenland. In a sense they have never left," she explained.
The United States has its active military base there, used during the Cold War as a warning post for possible attacks from the Soviet Union and still an essential part of the United States' missile defence infrastructure.
Greenland's location puts it on the shortest route for missiles between Russia and the United States.
Washington has "legitimate complaints about the lack of surveillance of the airspace and submarine areas east of Greenland," said Ulrik Pram Gad, also of the Danish Institute of International Studies.
Also its strategic position for when new shipping lanes are freed up due to melting ice adds importance, but Pram Gad believes Trump is using "exaggerated terms".
Trump in 2019, during his first term in office, floated the idea of a US purchase of Greenland, but that was rebuffed.
Potential mining sector
Since 2009, Greenlanders have been in charge of deciding how their natural resources are used.
Access to Greenland's mineral resources is considered crucial by the United States, which signed a memorandum on cooperation in the sector in 2019.
The EU followed suit four years later with its own agreement.
Greenland's soil is well-explored, which has enabled a detailed map of resources to be drawn up.
Pituffik Space Base, formerly Thule Air Base, with the domes of the Thule Tracking Station, is pictured in northern Greenland.