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Hello, I'm Katya Adler from the BBC World Service.
This is the Global story.
During Donald Trump's first time in office, when he said he wanted to acquire Greenland, many dismissed this as hyperbole, a nonsense even.
But now, days away from taking office a second time, he seems on an expansionist role, taunting Canada it should become the USA's 51st state, that he wants America to reacquire the Panama Canal, and insisting that Greenland must become a US property for strategic security.
He said, people really don't even know.
If Denmark has any legal right to it, but if they do, they should give it up because we need it for national security.
That's for the free world.
I'm talking about protecting the free world.
Greenland, the biggest island in the world, is an autonomous Danish territory rich in oil, gas reserves and other natural resources like zinc, gold and copper.
It sits between the US and Russia and is already home to a US military base.
Its geostrategic significance is very clear.
It's also hugely important in terms of climate conversations.
And its melting ice is also opening up new, profitable maritime trade routes, a development catching the attention of countries further afield, like China.
With all these competing interests, could we be looking at a brewing cold war in the Arctic, or, as some are calling it, an ice war?