My $0.02? The invasion of Greenland will likely follow the pattern of the π·πΊ capture of Crimea.
There will be an "exercise", one is currently scheduled, after which π©π° will discover that a lot more πΊπΈ troops are there than they thought. They will be asked politely to leave, and won't. π©π° and the rest of NATO (TRON?) will be left with the decision of whether to actually shoot first.
https://www.stripes.com/theaters/europe/2026-01-20/norad-greenland-trump-nato-20463347.html