As far as I have followed, Ukraine has lost a lot of the Soviet equipment.
These have now been replaced by Western technologies. In a bit smaller number of pieces. But the quality is much better.
In the German media it is also reported that Ukraine keeps large mechanized brigades (or was it pattalions?) in reserve.
At the moment, they are probably just trying to open a gap somewhere and tie up the enemy in as many sections as possible. And of course, as always, to attack the supplies.
We are currently seeing only one (?) of the 9 (?) newly formed assault brigades at the front. Most of the ground work is performed by the preexisting troops with various mix of eqiupement.
Afaik RUF have no strategic reserves at that magnitude (they might build some divisions, but at the cost of front line units).
-> So UAF is thinning the RUF trench lines to drain the tactical reserves and shaping the battlefield (aka blowing ammo dumps in the rear) until the supreme command decides it’s time to strike with the main force which is currently in reserve.
Russia is also holding troops in reserve and each side is waiting for the other to make a turn and see where the other starts commiting these reserves in large numbers. There are speculations that Russia is pulling said reserves into action in the south, but so far I am not aware how vague these assumptions are
