...unless they can field a 500,000 man second wave trained and led better than the first wave.
There is no evidence they have another half-million men or that their training and organization are better.
Anybody else the Tsar sends into Ukraine are just cannon fodder and increasingly the Russian troops know that.
Their situation is approaching that of the end of the Crimean War or the pre-Revolutionary days of World War One.
“What can I do?”
“Make peace you fool.”