Trump's Greenland takeover would likely entail enormous price tag: report

"The United States needs Greenland for the purpose of national security," Trump wrote Wednesday in a Truth Social post and warned that if the U.S. does not act, "Russia or China will."

Trump's renewed push has increased tensions with Denmark and other NATO allies.

France, Germany, Sweden and Norway are participating in the exercise, Fox News said, with leaders saying the mission is intended to demonstrate NATO's ability to deploy military assets quickly in the Arctic.

Trump has vowed to acquire Greenland "one way or the other," a remark Danish and Greenlandic officials have sharply rejected.

Greenland is the world's largest island and has a population of roughly 56,000 people with most people living along its ice-free coastline. About 80% of the territory is covered by ice caps and glaciers.

Fishing, hunting, whaling, sealing and tourism are the backbone of its local economy.

Fox News Digital has reached out to the White House for comment.