I'm really interested in the current balance of artillery. Between UAF targeting of ammo dumps and effective counter battery fire, I think it's possible the Russians can't get enough shells in the air to impact UAF logistics across the Oskil.

In fact, with the railway link at Kupyansk out of the picture, I'm not sure if the Russians can get enough shells into Luhansk anymore to have an effective artillery saturation strategy. Certainly the idea of more a more precise artillery campaign poses its own challenges.

There is zero benefit to drawing a line on the Troiske-Svotove axis instead of digging in on the east bank of the Oskil. The only thing this tells me is that the Russians were not able to react quick enough to stop the UAF from crossing the river.