Lise Doucette

And Ukraine, you know, in this war of attrition will ultimately lose first if there can't be a diplomatic solution in the medium term.

When you perform this backflip, it's an astonishing thing to watch.

And it was also illegal, wasn't it?

So you lost points?

What was the reaction in the rink...

Death to America.

It's long been the signature slogan of Iran's Islamic revolution.

Its most loyal backers surged through the main artery in the heart of Tehran, along a route nearly three miles long.

The same scene played out across the country.

It's a political reply to the protesters who filled streets and squares nationwide last month, calling for change.

This young woman told me what the Islamic revolution means to her.

At Azadi, or Freedom Square, Iran's president, Massoud Pesachian, accused the U.S.

and Europe of inciting the recent protests he called riots.

But he had conciliatory words for Iranians who had gone on strike or taken to the streets, calling for an end to an economic crisis causing huge suffering.

A public holiday was also a moment for families to forget their daily woes for a while.

But a revolution nearly a half century old now faces its biggest test.

Multiple crises at home and the risk of military confrontation with America if a surge in diplomacy fails.

Available now on The Documentary from the BBC World Service.

President Trump has made it clear time and again in moments like this that he likes to keep people guessing.

Remember last year when he made the decision to strike Iran's nuclear sites, he had said, well, I need two weeks to think about it.