The front-line drone 'kill zone' is widening, up to 50 km in some areas. Officials say 'it's a dead zone.'
· businessinsider.com
The kill zone in Ukraine, where every target can be spotted and destroyed, keeps expanding.
The "kill zone" along Ukraine's front has grown substantially with the drone threat in some areas, a defense official said.
Davyd Aloian, the deputy secretary ...