The prospect of American annexation has reinvigorated ties between the island and Copenhagen, though aspirations for independence persist.

Director of National Intelligence Tulsi Gabbard's office last week sent a "collection emphasis message" to the CIA, NSA and other spy agencies directing them to collect intelligence about Greenland's independence movement and identify potential allies there and in Denmark who support Trump's objective of taking over the island,

Officials summoned the American ambassador to express its displeasure after the Trump Administration was said be ratcheting up surveillance.