Nordic leaders met on the weekend and reiterated they are united on defence issues, Denmark's prime minister has said, as her country reels from US President Donald Trump's attempts to take over Greenland.

The story goes that Trump and Frederiksen spoke on the phone last week for about 45 minutes in what was expected to be a bit of a feeling-out between the two parties, given Trump’s very public declaration that he would like to take Greenland off Denmark’s hands.

Danish Prime Minister Mette Frederiksen predicted a "new reality" for Europe following the inauguration of Donald Trump as US president. "Independently of what he may say in his inaugural address, I expect that we as Europeans will have to orient ourselves to a new reality,