Contents of said letter from daily beast: https://archive.is/YFBK3#selection-773.0-779.748
“Dear Jonas,” the president wrote to Norway’s prime minister, Jonas Gahr Støre. “Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace, although it will always be predominant, but can now think about what is good and proper for the United States of America. Denmark cannot protect that land from Russia or China, and why do they have a ‘right of ownership’ anyway? There are no written documents, it’s only that a boat landed there hundreds of years ago, but we had boats landing there, also. I have done more for NATO than any other person since its founding, and now, NATO should do something for the United States. The World is not secure unless we have Complete and Total Control of Greenland. Thank you! President DJT.”
Not buying US debt is a long term strategy, not a short term punishment.
Trump only has to keep up the interest payments by selling bonds domestically.
It would be such a power move and its definitely being considered but I don’t see Europe actually going through with this unless Trump like actually invades Greenland or escalates further on different levels. First the agreement from the eu parliament is void, then counter tariffs, then comes the “trade bazooka” how they call it in Brussels and only in the very end would bonds be touched.