British Defense Intelligence Ukraine Update, July 19, 2022

Russia continues to commit what are nominally six separate armies to its Donbas offensive. At full strength, before the invasion, these formations were established for around 150,000 personnel.
In recent weeks, Russia has often operated with company-sized groupings of around 100 personnel when undertaking offensive operations in any one sector at a time.
Russia has struggled to sustain effective offensive combat power since the start of the invasion and this problem is likely becoming increasingly acute.
As well as dealing with severe under-manning, Russian planners face a dilemma between deploying reserves to the Donbas or defending against Ukrainian counterattacks in the southwestern Kherson sector.
Russia’s stated immediate policy objective is to seize all of Donetsk Oblast.
While Russia may still make further territorial gains, their operational tempo and rate of advance is likely to be very slow without a significant operational pause for reorganisation and refit.