Unconfirmed - pro-Ruzzian sources are speaking of an evacuation by Ukraine of nearly all villages along the dnipro river ; during winter, the river will be covered by a 1 foot thick layer of solid ice; There's no "Surovikin" line in the shores of the rives. Make of it what you want.

Also, UK has sent to Ukraine a drone capable of carrying and launching an anti-air missile. The compensation for job risk may raise quite fast for Ruzzian helicopter pilots.