You're listening to the Global News Podcast from the BBC World Service.

Hello, I'm Oliver Conway.

We're recording this at 13 hours GMT on Friday the 19th of May.

World leaders meeting in Japan announce new sanctions designed to starve Russia

of their technology it needs to support its war against Ukraine.

Syria's President Bashar al-Assad appears at an Arab summit after 12 years of diplomatic isolation.

An age agency say escalating fighting in Western Sudan is having a disastrous impact on civilians.

Also in the podcast, a 15-year study reveals how tiny sea organisms are helping to tackle climate change.

And...

We will certainly have to rehabilitate the entire nation.

Not only the military, but civilians too.

It will take 15 to 20 years.

The huge task Ukraine faces in treating the mental scars of conflict.

The choice of Hiroshima for this year's G7 summit of wealthy democracies is highly symbolic.

The first city ever hit by an atomic bomb.

The Japanese Prime Minister Fumio Kishido wanted to quote,

send a strong message about the need for a world without nuclear weapons.

The man currently threatening to use such weapons, Russia's Vladimir Putin is not there.

But Ukrainian President Vladimir Zelensky will attend on Sunday.

G7 leaders have already announced new sanctions on Russia.

Do they say starve the country of the technology it needs to wage war?

Our correspondent Laura Bicker has this report from Hiroshima's Peace Memorial Park.

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