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Hello and welcome to News Hour from the BBC World Service.
We're coming to you live from London.
I'm Leila Nathu.
Let us start the programme in Germany,
where world leaders have been gathering in Munich to debate the most pressing challenges to international security,
and where last year US Vice President JD Vance stunned his audience at the same conference with an address attacking European nations for failures on immigration and free speech,
which heralded a major upheaval of transatlantic relations.
This year JD Vance isn't leading the American delegation,
instead its Secretary of State Marco Rubio.
who sounded a little more emollient as he prepared to fly out of Washington, D.C.
I think they want honesty.
They want to know where we're going, where we'd like to go with them.
And I think it's at a defining moment.
The world is changing very fast right in front of us.
The old world is gone, and we live in a new era in geopolitics,