The note, shared widely with other nations by the U.S. administration, was sent in response to a brief message from Norwegian Prime Minister Jonas Gahr Støre and Finnish President Alexander Stubb opposing Trump’s decision to impose tariffs on European allies over their refusal to allow the United States to take control of Greenland, Støre said in a statement.

In their message, Støre and Stubb called for de-escalation of rhetoric and requested a phone call with Trump, according to the Norwegian premier. Trump’s response came shortly after their message was sent.

“Dear Jonas: 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,” Trump wrote in his reply, seen by Reuters.

Trump has openly campaigned for the Nobel Peace Prize, which last year was awarded to Venezuelan opposition leader Maria Corina Machado.

“I have several times explained clearly to Trump the well-known fact that it is an independent Nobel Committee, and not the Norwegian government, which awards the prize,” Støre said.

Machado gave Trump her gold medal during a White House meeting last week, although the Norwegian Nobel Committee has said the prize cannot be transferred, shared or revoked. The committee did not immediately respond to a request for comment on Monday.

In his message to Støre, Trump again questioned Danish sovereignty over Greenland, saying Denmark could not protect the territory from Russia or China and asking why it had a “right of ownership” over the island.

“There are no written documents, it’s only that a boat landed there hundreds of years ago, but we had boats landing there, also,” Trump wrote.

Danish sovereignty over Greenland is documented through binding legal instruments, including a treaty agreed in 1814, and the United States has repeatedly recognised that Greenland is part of the Kingdom of Denmark.

Trump ended his message by reiterating his stance on NATO and Greenland.

“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.”