Well, crying won't help in that circumstance. What is needed is forethought, planning and quick action.
Is Putin going to be a threat? I actually think not. He was expecting a quick march into Ukraine and to take it in a day, if not an afternoon. He is meeting a better trained and more committed army and volunteers than he expected.
he has discovered that the daynof the tank is over. Tanks can no longer roll into countries destroying all before them, Modern handheld, guided missiles, which we have supplied to the Ukrainians, just blow the tanks up as they appear. I think Putin forgot this in his senile psychosis.
I hope and pray that the ending of this is going to be other than Putin expected. He is already suggesting negotiations, currently in Belorus, but more likely in Turkey. That is a sure sign he knows he made a mistake.
It has been said that, like many long standing dictators as they decline into old age they lose their sense of reality. This certainly is what is happening to Putin. It is known that he now takes little if any notice of his council of ministers, never meets anyone outside a very tight circle and is paranoid about COVID.
I doubt many of his councillors agree with him, and neither do a growing proprtion of the Russian population.