Why Donald Trump wants Greenland.

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Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. President-elect Donald Trump wants to acquire Greenland. This is not merely one of his japes, as it may have been during his first term. Great-power territorial acquisition is on his dream list for his second term. And while the annexation of Canada as the “51st state,” as he often posts, may be more in the messing-around category, he’s speaking quite seriously about seizing Greenland. The Danish crown is paying attention. “In meetings, at dinners and in passing conversations, Mr....