NATO would face a serious crisis over Greenland. Europe seems powerless to stop it.

On Tuesday, the White House announced that the president is "considering various options" to purchase Greenland, indicating that the possibility of using US armed forces is not being ruled out. Stephen Miller, Trump's deputy chief of staff, declared: "Proclaiming a return to a world where the powerful take what they can and the disadvantaged suffer what they must." "We will behave like a superpower, because we are." Marco Rubio has tried to downplay concerns about a military intervention, maintaining instead that the Trump administration is considering buying Greenland. Danish Prime Minister Mette Frederiksen has issued a warning: "If the United States chooses to forcefully attack another NATO country, everything will come to a halt, including NATO and, consequently, the security established since the end of World War II."