I think you should clarify that by a much smaller country you mean largest country in Europe. You also seem to be purposefully misinterpreting the OP's point a

I think you should clarify that by a much smaller country you mean largest country in Europe. You also seem to be purposefully misinterpreting the OP's point about what is being considered "casual". Whether you think Putin is irrational or not has no bearing on the fact that most of our leaders seem to be treating a potential nuclear war after decades of shuttle diplomacy indeed very casually.