This is CBS Eye on the World. Here's John Batchelor.

I welcome my colleague Anatole Levin of the Quincy Institute for Responsible Statecraft,

the director of the Eurasia Project, looking at the headlines on the Ukraine-Russia conflict.

Much in the news about negotiations.

What about the battlefront?

We have this from Reuters in these last hours.

Pekrofts fall will not cause frontline collapse, but weakens Ukraine in Trump's eyes.

That is a story.

It requires a little translation.

Pukovsk is a city that is now a ruin, and it's been under siege by the Russians for

perhaps a year. And the frustration of the Russians to resolve this has to do with the changing

tactics on the battlefield. I'm told by people follow the battlefield closely that you no longer can count on human waves

or something like World War I, where people come out of their trenches and go over the top.

Instead, the fighting, the combat, the risk is done by teams of three or five soldiers.

Sometimes as few as one, wandering through these ruins of Pekrofts and the fields around.

Sometimes the Ukrainian and Russian forces wind up in the same tree line at different places in it and can't see each other.

Their eyes are always on the sky because the drones are the threat. In Pekrofts, you can be in one part of a building and the Russians

in another part of the building and not know it because you're searching with your drones.

The drone operators need to be within radio distance of the front line.

They become now the number one target for both sides, not the soldiers with the rifles,

but the men with the drone directions that can bring down surveillance or deaths on you.

That's per cross for a year. It describes a battlefield that's not

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