In the middle of his speech to the congress, Trump claimed that he had a message to the "fantastic people of Greenland".
We really support your right to decide your own future, and if you choose to, we welcome you to the USA.
The USA can protect the Greenlanders and make them rich, Trump claimed. But then he shifted his tone.
We need Greenland for national and international security. We are working with all parties involved to try to get it, he said about the autonomous island.
One way or another, we will get it.
Greenland's Prime Minister Múte Bourup Egede reacts.
"We are not for sale and cannot just be taken", he writes on Facebook.
Denmark's Defense Minister also rejects Trump.
You cannot take a part of the kingdom, says Troels Lund Poulsen to DR.
Greenland is going to the polls on March 11, an election that is expected to be largely about increased independence from Denmark.
What do you think?