It seems that Russia is massively outnumbered on the ground.

For the past week or so I've been wondering why it is that they don't launch a new assault in the far-north, i.e. across the Belarussian border. At the moment, it looks like the Ukraine has moved all of its soldiers eastwards, whereas a new assault in the direction of Kiev would force them to move some of their forces back north.

However, since most of the areas that Russia already controls are majority-Russian demographically, I doubt that there's much support for the Zelensky regime there. Russia will thus be able to build militias similar to those in Novorossiya if given enough time. Since the Ukraine has never taken back Novorossiya, I suspect the same thing will hold true in these other areas once enough men become combat-ready. An insurgency is almost certain to be waged even if the Ukrainians regain military control.

Supposedly, Russia has been buying plenty of weapons from Iran (which exports cheap versions of American drones that have been shot down or crashed in their country) as well as North Korea. If so, they clearly weren't as well prepared as they should have been.