Russians are unique. They have survived most of the wars. They will survive this war as well.
Putin has been judo learner since childhood - he only believes in military solution but one thing is for sure they are very aggressive and they do what they deem right.
It is a bit about "how" and not "if". I mean sure they did survived a lot of wars, they survived WWII as well, by losing millions and millions of people, a bit of a Pyrrhic victory wouldn't you say?
They had a "cold war" situation where they spent so much money that people were basically starving to death, just so that money would go towards fighting against USA without ever firing a single bullet to each other, meanwhile all through 60's and a bit of 70's, people in USA lived probably the best economical period. Right now as well, maybe the economy in grand scheme looks good, but look at how much people make monthly, you will see who loses in this war.