UKRAINE needs to be infiltrating Russia and establishing sabotage cells in every major Russian City. In fact they should be making thing go pop NOW.
They won’t match the Russians with Aircraft and Tanks but will with mines, mortars, and many easy to accomplish soft target sabotage.
I often said that if I was Ukrainian and wanted to be a true jagoff to the Russians, I’d load up dynamite on the dome at Chernobyl or if not, find a way to blow the dome using a Mi-24 or MiG from a distance when the winds are right. The radioactive fallout will go over Russia and let the mayhem ensue.