The United States is preparing to deploy aircraft to a key military base in Greenland, the US military said, in a move that comes amid escalating tensions over President Donald Trump’s push to acquire the Arctic territory.

Aircraft “will soon arrive” at the Pituffik Space Base in Greenland, according to the North American Aerospace Defense Command, which said the deployment would support long-planned regional defence operations.

“Along with aircraft operating from bases in the continental United States and Canada, they will support various long-planned NORAD activities,” the command said in a post on X, citing “enduring defence cooperation” with Canada and Denmark.

NORAD stressed that the activity had been coordinated with Denmark and that Greenland’s government had been informed in advance. The military did not specify when the aircraft would arrive, but the timing has drawn attention as Trump intensifies pressure on European allies over Greenland.

Trump has threatened sweeping tariffs — starting at 10 percent on February 1 and rising to 25 percent by June — on Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland unless the United States is allowed to buy Greenland. He has said the measures would remain in place until a deal is reached.