A few days before returning to the White House as the new president of the United States, Donald Trump said, “We need Greenland for national security reasons.” His interest is no accident: the Danish island has abundant reserves of key minerals for the construction of almost any tech device. In the great global chessboard of critical minerals, China has the biggest advantage since it controls more than 90% of production; the US is fighting against all odds to gain some strategic autonomy, and Europe is doing what it can.