It isn’t anything close to the Louisiana Purchase, or the Mexican American War results, or Texas, or the Alaska Purchase, but I see it as the biggest related thing since those, and a modern version of such.
Look at a world map. It should be a part of the USA...at least as a territory.
Sometimes, in an effort to support President Trump, people over-exaggerate the significance of a deal.
While the Greenland Deal is important, it is UNLIKE the Louisiana Purchase.
The Louisiana Purchase was a sovereignty transfer: France ceded 828,000 square miles of territory to the United States in 1803. Trump’s Greenland deal, by contrast, explicitly preserves Danish sovereignty and Greenlandic self‑determination.
The Greenland Deal:
Amends and supplements the 1951 U.S.–Denmark defense treaty rather than replacing it.
Expands U.S. basing rights (e.g., Pituffik modernization, new bases at Narsarsuaq and Mestersvig).
Grants the U.S. a veto over certain foreign investments in Greenland’s critical sectors.
Adds new categories of military access (e.g., unmanned installations, undersea access).
States no sovereignty is transferred — a point Denmark and Greenland emphasized repeatedly.
This is control without ownership — a defense‑access expansion, not territorial acquisition.
Greenland’s government stated that its constitutional future “belongs to Greenlanders alone.”
A purchase or annexation is politically impossible.
It is a strategic defense agreement layered onto a 75‑year‑old treaty, giving the U.S. expanded military access and influence — but no territory.
Greenland's total area: 0.836 million square miles (2.17 million km2).
Continental U.S. (which, by definition, includes Alaska): 3.7 million sq. miles (9.6 million km2)
Contiguous U.S. (which excludes Alaska; i.e., the Lower 48): 3.12 million square miles (8.1 million km2)
Greenland is thus well under one-quarter the size of the continental U.S. - though it is slightly more than one-quarter of the contiguous U.S.
A gross exaggeration to say that it is one-third the size of even only the Lower 48!
Regards,
But are we going to send settlers there who will build great cities?
The Louisiana Purchase added thousands of acres of fertile, useful and habitable land to the USA, including two very great river systems.
The Greenland deal—not so much!