US President Donald Trump would not "land on Greenland and take it by force", Lord Mandelson has said.
The former UK ambassador to the US told the BBC he admired Trump's "directness" in political talks but said he was not a "fool", and advisers would remind him that taking Greenland could spell "real danger" for the US national interest.
There has been growing focus during Trump's second term on how the semi-autonomous Danish territory is run, with Trump saying on Saturday the US needed to "own" Greenland to stop Russia and China from doing so.
Denmark and Greenland say the territory is not for sale, with Denmark warning military action would spell the end of the Nato military alliance.
US Secretary of State Marco Rubio will hold talks with Denmark about Greenland next week. The AFP news agency reports that a Danish poll suggests that 38% of Danes think the US will launch an invasion of Greenland under the Trump administration.
