President-elect Trump's talk of Canada as a "51st state" and annexing Greenland registered among national-security crowds as an "Oh, boy!" moment. Obnoxious, enticing, familiar. Why it matters: The darlings of Trump's current foreign policy fixation boast Arctic utility at a time when the icy region is heating up.

The U.S. already has a base in one of the territories Trump covets. Here’s how the Americans stationed there are told to deal with the people who are actually from there.