Along with the TSR, Greenland sits on an estimated 20kGWH per year of UNTAPPED hydro power because ice sheet melt, along with the freshwater involved that currently just runs into the sea. Their plan is to slowly develop the hydro industry and convert its power to either hydrogen or ammonia for shipping. A new, green, oilfield, with somewhere between 10%-20% of the world’s entire freshwater supply tossed in. They’re a modern Beverly Hillbillies.
AI data centers could be deposited all over the ice sheet to use the natural environment for cooling and the hydro to power them.
Undersea fiber network cable will increasingly run to Greenland.
The “Golden Dome” missile shield that Trump and military want would heavily depend on a string of sensor and missile nodes in northern Greenland. Keep in mind that hypersonic missiles exist now. Warning time is a fraction of what it used to be, so a location that provides warning in the direction that any strike from a major adversary would come from is meaningful.
Nuclear propulsion isn’t allowed in Greenland because <European reasons>, which makes Arctic naval basing much more complicated.
And to top it all off, China has been desperately trying to get in on any and all of the above. Like they did in Sri Lanka, NATO ally Greece, Africa, South America…when that happens, they end up with deeded land and commercial bases that become intelligence or military assets.