Or alternatively, Trump is playing 5d chess, and this is how he gets European nations to increase their defense spending :) /s
That's an insightful question about Greenland, which Denmark desperately wanted to retain in the 1950s to the extent of unilaterally making it a 'part' of the Kingdom without consulting the Greenlanders.
Ironically it was only Belgium that spoke out, based on its own colonial dirty laundry.
https://unric.org/en/greenland-and-the-un-colony-or-not-a-co...