Donald Trump reiterates desire to buy Greenland after eyeing Canada, Panama Canal

US President-elect Donald Trump appears to be entertaining an American territorial expansion that, if he’s serious, would rival the Louisiana Purchase or the deal that netted Alaska from Russia.

In the past week, he’s taunted Canadian officials by suggesting the US could absorb its northern neighbor and make it the 51st state. He threatened to take over the Panama Canal, the US-made waterway controlled for a quarter century by its Central American namesake. And on Sunday, he resurfaced his first-term desire to obtain Greenland, a Danish territory he has long eyed.

With Trump, the differences between serious policy proposals and rhetorical flourishes intended to stoke media attention or energize his base are not always clear. At other times, his provocations have appeared to be the opening salvos in his attempts at dealmaking.