It seems as though the Russians forgot how to apply the tactics that they used in Chechnya on approaching Grozny with regards to approaching such cities as Sumy, Chernihiv, and Kharkiv that are relatively close to the Russian border. They were very cautious and methodical during the second war there... Granted that they do not intend to unleash the same extent of destruction as they did on Grozny... Not anything close to that...
But in the first week of the invasion, it looks like they just rushed their advance without taking into consideration the need for drone defence and anti-armour defence, or undertaking extensive preliminary bombardment of locations near and around where they'd establish forward operating bases for siege warfare...
People will argue about this for years, I am sure, but I can sort of see how this could have happened.
Remember what they say about battle plans not surviving first contact with the enemy?
I think it was even worse with this situation as they were really not sure what the reception for the local civilian populace was going to be and given the shared heritage, I can understand that they would not have wanted to go in to hard and alienate an otherwise friendly population.
Is that what happened?
Again, I am very mindful of the information war at full on that is being waged.
We all saw the gloating clips of the stone and molotov throwing crowds from the early days. It was however a fairly small number of clips being constantly recycled. Was this the case throughout or was the main reaction indifference with the odd spot of enthusiasm as well?
Its the same with the combat footage, we are shown the Russian casualties, but what is inflicted on the other side is not shown.
Can we infer anything, yes, the Russians have pushed forward and herded the Ukrainians into the larger towns and cities, effectively hiding behind the population who are being used as human shields (no doubt about that at all)
As for the rest, it does look as though tough early lessons are being learned. None of which is surprising for an army that has not had a proper combat for about thirty years.