That is an unknown.
When a country is fighting a real war it is silly to blame them for not winning quickly when they have fought with their hands tied behind their back.
Use nukes, receive nukes. Delusional, you are.
Ha.....
Russia has lost men, tanks, artillery, even Scoby Doo vans and etc in horrendous quantity.
What Russia and it’s customer world has learned is that they are not the super power image that has been endlessly projected. Their weapons marked has just evaporated........poof