There is no need to speculate about worst-case scenarios from such a possible confrontation: the most likely outcome is bad enough. As Denmark’s prime minister, Mette Frederiksen, has warned, an attack on Greenland would be the end of NATO. That would rob the United States of an unbeatable web of allies, offer rifts for our common enemies to exploit and eradicate the alliance’s collective moral high ground that has helped project American soft power across Europe and the world for decades. In short, it would make America weaker, not safer.