To add to this, the US is not that great in the Arctic. To occupy Greenland they need boots on the ground, and they are not equipped or manned to do Arctic land operations. EU + Canada surpass them in that. The US only has the one airborne division that are actually cold weather fighters. They also have far fewer ice breakers and the additional units that they were going to buy from Finland (who makes the best ones in the world) will surely be canceled.
To add to this, the US is not that great in the Arctic. To occupy Greenland they need boots on the ground, and they are not equipped or manned to do Arctic land operations. EU + Canada surpass them in that. The US only has the one airborne division that are actually cold weather fighters. They also have far fewer ice breakers and the additional units that they were going to buy from Finland (who makes the best ones in the world) will surely be canceled.