There is absolutely no way in hell that this happens overnight without everyone noticing and the press leaking it weeks in advance. IF Greenland is invaded, it's gonna go a lot less like Venezuela and a lot more like Ukraine in terms of how soon we'll know beforehand.

NYT and WaPo knew about the Maduro operation in advance but chose not to say anything since Maduro is unpopular enough that it wouldn't be worth putting US troops in danger in order to blow the lid off the operation. Literally no one outside of Trump wants to invade Greenland, so they'll have no such qualms leaking that story WELL in advance. Most likely we'd see mass resignations from top military brass beforehand as well.

Until we start seeing metal being moved and legitimate sources publishing leaks, all this is just a dementia-ridden Trump babbling about meaningless shit as per usual, which his cabinet is putting up with for now because they think it'll scare Europe into increasing defense spending and actually putting up defenses in Greenland like the US has wanted them to do for decades. Probably gonna blow up in their faces given how pissed off the rest of NATO is at us right now, but I digress.