Do the Russians have any forces available which are not engaged elsewhere? It doesn’t look like they do.
So..it will take a couple days. Meanwhile, if you take a look at the map of the area. The forces in that area are from the break away regions and have withdrawn over that river to set up defensive lines.
If Ukraine does not bolster its flanks, those forces will get chewed to hell.
I am waiting to see if the Russians start a scorched earth campaign there.
The FR neocon chickenhawks already have Vlad in chains in the docket at Brussels.