Oliver Conway

Cuba is losing around a third of what it relies on from outside contributors.

So that could have a very dramatic effect.

Some observers are suggesting it could be catastrophic for the Cuban economy and lead to power cuts and food shortages and all sorts of difficulty.

And of course, that is exactly what Donald Trump wants.

He wants to batter communist Havana into submission to make some kind of deal.

What that deal is, he doesn't say.

But for Cuban Americans, influential people like the Secretary of State, Marco Rubio, they want to see the release of political prisoners, the holding of free and fair elections.

Frankly, they want to see an end to the Cuban revolution started, led by Fidel Castro in the 1950s.

Now, the Cuban president, President Diaz-Canel, has said that Cuba is free, independent, and sovereign.

No one tells us what to do.

But the regime in Havana, which has weathered all sorts of storms in the past,

knows that it is now facing possibly some of its most difficult days yet.

Paul Adams in Washington.

Meanwhile, the foreign ministers of Denmark and Greenland will travel to Washington this week for talks over the future of the semi-autonomous Danish territory.

President Trump says the US needs Greenland for its defence, but 85% of the island's residents say they have no interest in becoming American.

Our Europe editor Katja Adler sent this report from Greenland's capital, Nuuk.

Crisis or no crisis, it's the weekend and Greenlanders were out skiing and sledging around the frozen lake of Nook.

The tension hangs heavy.

This is the world's biggest island and local mayor of Varag Olsen's municipality is the size of France across the ice sheet.

She's protective of her home.