Mineral wealth. Strategic important. Just that China or Russia wanting it should be enough to make us want it as well.
China and Russia are the real foes. Geopolitics.
Biden left us a full blown WWIII.
Greenland may not actually “belong” to Denmark. Nobody seems to know why there’s that assumption, when Denmark acquired it, if they did, etc.
It’s possible that Greenland could vote to be independent, or to be an American state.
Anyhow, FWIW ... just discussions I’ve heard on the news the last couple of days.