How Ukrainian drone warfare is shifting momentum in the war with Russia

In a field outside of Kyiv last weekend, a van was parked discreetly behind some trees. Inside the van there were no passenger seats, just a long desk, two office chairs, two laptops, extra screens.

Outside appearances to the contrary, this was a mobile drone-interceptor base, one of hundreds of similar vehicles now scattered around Ukraine.

It's also part of something much bigger: a set of technological advances that have changed the war with Russia, and maybe all wars, forever.

On one of the laptops, a soldier showed me a bird's-eye view of a part of the Ukrainian countryside more than 100 mi