For all the posting of individual units being killed by Russian lancets; artillery smacking tanks and buildings; and whatnot, why has there not been a significant *Russian* offensive?
The Russians went into Ukraine with 190k (at most) in 130 BTG. We know the Russians reinforced with other units as some of the originals were chewed on. Plus the PMCs are there. The Russians called up 300k troops. Furthermore, the called-up 300k should give them another 205 BTG assuming they can be equipped. I'd speculate Russia may have 3x the original number of troops now in Ukraine.
The 205 to 335 BTG is a lot more than the 20 brigades the Ukrainians have pulled together for their offensive, if and when and ever that happens.
So why are the Russians not concentrating at least a the force equivalent of a combined arms army and punching through the Ukrainian lines at a particular point? The Ukrainians can't be strong everywhere all the time.
I can speculate:
1. logistical problems - not a problem with having the material so much as being able to resupply the units on offensive. There has been speculation from the start the Russians had issues going past a truck ride from a rail head since nearly the beginning.
2. The russians have a serious ISR problem and can't figure out if the Ukrainians have a weak point or not. Given the number of drones involved - Ukrainians saying they lose 10k per month - I have doubts about this.
3. Casualties are a lot worse than people think and the battle hardened, professional troops are in bad shape. The others need a lot more seasoning before they can be used on a significant offensive.
4. Risk aversion. No commander in the Russian army wants to get blamed for a major failure. The sacking of generals has been a lot more than I'd have expected already and the ones left are not willing to risk a failure - even if slight - or worse, the Ukrainians taking advantage and pulling off another Kharkov offensive.
5. Possibly they tried and failed in the winter. I've heard this a few times now, but...unless the Russian army is a lot worse than I think it is or the Ukrainians a lot better, then ... I have doubts?
Why are we seeing tactics used that look more like the terminal Korean War attacks by the UN/American troops than an actual offensive? Why haven't we seen a new kessel since Mauripol? Even in Bakmut, the Ukrainians were able to retreat in good enough order to prevent encirclement?
Why haven't we seen a major offensive?