[spacechild1]

Denmark/Greenland certainly thinks differently. And empty threats are still threats.

[WalterBright]

There's been no followup on the "threat".

[spacechild1]

First, a threat stays a threat, even if you don't "follow up".

Second, there are stories about alleged covert CIA operations. The topic is certainly not off the table.

Don't you see any problem with the US expressing desires to annex parts of a fellow NATO member, let alone not ruling out military action?