[Sammi]

How will the Russian army defend their supply lines after encircling a town? Ukrainians are armed to the teeth with handheld western weapons to destroy armed vehicles with, and Ukrainian infantry can just lay behind and wait. We are seeing Russian convoy after convoy be destroyed to surprise attacks. Ukrainians don't have to take the fight head on. They can just wait and take out the supply lines.

This is an unwinnable war for Russia, because Ukrainian infantry is armed and not willing to lay down their arms. Russia has learned nothing from e.g. Vietnam.