A US House member has introduced a bill that talks about bringing Greenland under US control and later making it a US state, but it has not passed and does not change any policy right now. Denmark and Greenland have rejected the idea and say Greenland is not for sale.
Europe is now talking about war in plain language, not as a distant risk. NATO has warned of a conflict on a world-war scale, while China keeps tightening pressure on Taiwan and the U.S. is floating bold moves on Greenland. It is not proof WW3 is coming, but the world is starting to prepare like it might.