For the record, the following was July 11,.2018. Let that sink in while you watch it.
https://youtu.be/Vpwkdmwui3k?si=Yc1VlhIH8fmusN3fIf NATO aren't prepared to up their commitment, then the US may well withdraw from it. Especially as the European members are trying to turn it into UTO.* This is not new news.
If the US does withdraw from it then Greenland would play a much more significant role in the defence of the US.
To Malcolm's point, the Aurora project operates from there and over the last few months things have been getting busy over there.
I fly to the West Coast alot and we used to regularly fly over Greenland, but recently we've always been well south of the tip even when flying to the Pacific Northwest.
Ultimately his role is to defend the interests of the US. He is actually more proactive about that than the outgoing adminitration.
Trump has an unorthodox way of presenting things, and the focus seems to be on the presentation of the proposals rather than the thought processes behind them which actually turn out to be well reasoned.
Protection of the Panama Canal would give trade controls over it, and whilst the UN may not be too impressed by the US controlling it, it would keep it protected from the Chinese.
There may well be war coming, but the threat isn't Russia or Trump.
*To this end, I strongly suspect that the US support of Ukraine will end quite swiftly and without the US Europe will be sitting ducks for Putin or the Chinese because we've effectively donated our military infrastructure to Ukraine.