Welcome to the documentary from the BBC World Service.

This is

You're

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the fifth floor.

The fifth floor de noosos fifth floor in Newseus.

We see me as well.

To me have this fifth floor

fornak and me this obat.

This is the fifth floor at the heart of global storytelling with BBC journalists from all around the world.

I'm your host, Parenak Amid. Could announcing the number of war casualties have a negative impact on the morale of soldiers or a nation?

Could the number of dead soldiers and their life stories paint a picture of what an army is going through on the ground?

These are the kind of questions that pop in my mind

when I think of the ongoing war in Ukraine. And I'm going to find some answers to these questions

in this episode of the fifth floor.

This is the Ukrainian president, and this is the Ukrainian president, Vila de Merze-Lenski.

And this is not very usual, but he is announcing that 31,000 Ukrainian soldiers have been killed

since the start of the Russian invasion over two years ago.

Of course, this figure is disputed and many believe that the number is much higher.

On the other side, Russians are also very secretive about the number of their

casualties and that is why a group of dedicated and determined BBC Russian journalists took it upon themselves to keep track of those

who died on the Russian side. I wanted to find out more about this investigation so I sat down with Olga Ifshina who is at the heart of this operation and she told me what they found so far.

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