In recent weeks Russia has ramped up its airstrikes on Kharkiv in eastern Ukraine, a city

already facing non-stop bombing since the full-scale invasion more than two years ago.

This latest campaign has left the 1.3 million residents of Ukraine's second largest

city worried about what comes next as the war reaches a critical juncture. My colleagues

and I travel to Harqui when we were in Ukraine last week to file this report.

Despite Russia's relentless attempts to derail daily life,

the city of Kharkiv Kharkiv Kh city of Kharkiv carries on.

Less than 20 miles from the Russian border, shops open daily for business.

Walls are graffiti with local pride pride and fluttering Ukrainian flags line the blocks.

Even the metro still runs on time.

But down here, commuters aren't alone.

Since last September, school children have been attending class inside Harkiv subway tunnels.

It's one of the few places they're safe from Russia's bombing

campaign that's only intensified in recent weeks. Six-year-old Yuleau is one of

more than 800 kids at this station.

Do you know why you're in school down here in the subway?

I'm sure,

because there's a war, there's a war, there's a war.

And what does that mean?

There's a war.

It's where the rockets go.

Do-do-doo.

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