The scope of the current Russian operations inn Ukraine

 ISW:

The Russians have not fully set conditions for a large-scale offensive operation. The Russians have not had enough time to reconstitute forces withdrawn from the Battle of Kyiv and ready them properly for a new offensive in the east. The Russians appear to be still building logistics and command-and-control capabilities even as they start the next round of major fighting. The tempo of Russian operations continues to suggest that President Vladimir Putin is demanding a hasty offensive to achieve his stated objectives, possibly by “Victory Day” on May 9. The haste and partial preparation of the Russian attack will likely undermine its effectiveness and may compromise its success.

Russian forces appear to be attempting to conduct a wide encirclement of Ukrainian troops along axes from Izyum to the southeast and from Donetsk City to the north even as they push west from Popasna and positions north of Severodonetsk. Russian ground offensives in the last 24 hours occurred around Izyum, Kreminna (north of Severodonetsk), and from Donetsk City toward Avdiivka. Only the advance to and possibly through Kreminna made significant progress. An encirclement on this scale would likely take considerable time to complete against Ukrainian resistance. Even if the Russians did complete such an encirclement and trapped a large concentration of Ukrainian forces inside one or more pockets, the Ukrainian defenders would likely be able to hold out for a considerable period and might well be able to break out.

The Russians may alternatively try to complete several smaller encirclements simultaneously, each trapping fewer Ukrainian forces and therefore taking less time to complete and then reduce. Coordinating such operations is complicated and beyond the planning and execution capacities the Russian army has demonstrated in the conflict thus far.

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I have seen no reporting on the Ukraine response so far.  We should be seeing some of that today.  The Russians, to date, have shown little operationally ability in mechanized attacks.  They have suffered significant damage to tanks and other vehicles and appear to have little support from their infantry.