A meeting of world leaders is an ordinarily staid affair. With much hand-shaking, head-nodding and talk of ‘friendship’. But not this one between American president Donald Trump browbeat and Ukrainian president Vlodomir Zelensky.

So what happens now?

Zelensky flew to London and attended a critical summit with European leaders, who have sworn to support him and Ukraine, and draft a new peace plan.

Today, Europe correspondent Rob Harris, on the so-called 'coalition of the willing' and whether it might be enough to protect Ukraine from Russia, without U.S support.

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