The USA desires to purchase Greenland, not annex it. The main WELT enterprise editor Holger Zschäpitz sees a big variation within the worth valuation: “I would say between 100 billion and 1.1 trillion.”
https://www.welt.de/wirtschaft/video695e9841df37c2b4e268ce16/trump-will-groenland-das-wetter-erschwert-den-abbau-der-rohstoffe-enorm.html