In the late summer of 2019, former U.S. President Donald Trump expressed an aggressive interest in acquiring Greenland, a territory of Denmark. This is part of his broader foreign policy to strengthen U.S. national security by expanding its presence in strategic locations. However, his approach elicited backlash even from his former advisers, including Mick Mulvaney, who served as Trump's acting chief of staff. Mulvaney advised against pressuring European allies, emphasizing the potential negative impact on U.S. affordability and economic relations. He highlighted that Europe is America's largest creditor, and such actions could raise interest rates and result in economic repercussions. Trump had proposed imposing tariffs on Denmark and other European nations that refused to support his annexation of Greenland, leading to alienation of allies. Additionally, Mulvaney criticized the administration's framing of national security discussions concerning Greenland, suggesting that there are more diplomatic approaches to increase military presence without damaging relationships. His comments reflect concerns about the costs associated with such territorial ambitions, which could amount to an estimated $700 billion, impacting consumer prices domestically. The discussions also intersect with U.S. foreign policy dynamics in the context of an emerging great power competition with countries like China and Russia, as Greenland is seen as a valuable asset for its rare earth minerals and strategic military positioning.