If the Russians use the same range drones to close the road from Kramatorsk to Dobropillya they should be able to close the road from Mezhova to Prosyana.
When the Russians reach the Vovcha River at Iskra and use the same kind of drones that closed the road from Dobropillya to Kramatorsk. They will be able to close 20 miles of the T0406 highway from Prosiana to Mezhova.