This BBC podcast is supported by ads outside the UK.
Looking to expand your business?
Choose Canada, the country consistently ranked in the top three for FDI confidence.
It's where one of the most stable economies in the world is the strong foundation for your bold ambitions.
Invest in Canada, where bold feels at home.
Learn more at investcanada.ca.
Hello and welcome to News Air.
From the BBC World Service, we're coming to you live from London.
I'm James Menendez.
For a man who caught attention like few others,
President Trump certainly had it when he addressed the World Economic Forum in the Swiss ski resort of Davos today,
and not just the assembled gathering of political and business leaders sitting in stony silence in the main convention hall,
but people all over the world.
Why?
Because of the expectation that Mr Trump would, in the heart of Europe,
give some clarity about how he intends to fulfil his ambition to take control of Greenland.
In recent days,
the White House has continued to insist it wouldn't take military action off the table.
That, says almost everyone,
would mean the end of the transatlantic alliance and the collapse of the post-Second World War liberal order.