Greenlanders shared mixed reactions to the idea of the US buying their island. While some expressed a desire to break from Danish rule, others were open to a US partnership for potential benefits like increased security.

Sen. Rand Paul says he opposes military action in Greenland​ as the White House says it is exploring all options for the territory​, including military action.

The White House said Tuesday that “U.S. military is always an option,” even as a series of European leaders rejected President Donald Trump’s comments about seeking an American

Danish Prime Minister Mette Frederiksen says an American takeover of Greenland would amount to the end of the NATO military alliance.

Veteran diplomat tells CBS News Denmark "ready to cooperate" on Greenland, and he expects U.S. to abandon "anachronistic approach of colonialism" post-Trump.

Democratic Sen. Chris Murphy of Connecticut says an annexation of Greenland “would be the end of NATO” and lead to a larger conflict between the U.S. and Europe.

Trump administration reportedly considering paying Greenland residents $10,000-$100,000 each to encourage secession from Denmark for U.S. acquisition.

As the White House confirms military force is "always an option," experts say the costs—financial, strategic, and geopolitical—will be staggering.