Strategic musings

In September, 1939, Germany and the Soviet Union attacked Poland and carved it up in short order. Airpower was used extensively by Germany right from the outset against military targets and to terrorize the civilian population.

So far, in Ukraine, Russia has refrained from doing this, hoping that the population will not mount a serious opposition to the invasion.

If that hope is not fulfilled, things are likely to change rapidly as a stalled "blitzkrieg" would be to Russia's disadvantage.

You can't occupy a town by simply driving a few tanks into the town square and raise the flag.
Snipers would take you out in no time.

So, there you are,  expect drastic escalation in destruction if Ukrainians decide to take a stand.