These last year’s of fighting were not exclusively done by volunteers and patriots at all.
Source: Gave a place to stay to a men (28yo) dodging the draft, weeks after the war started. He told me that his friends were either hiding in some grandpa house, pretending that they never knew about any draft invite, or straight up ran to some other country (some of them bribing border guards in the process).
These situations happened in 2022, not now. You can probably imagine that this is far from “with volunteers”. A lot of these were caught (or didn’t hide in the first place) and were sent to some army outpost.