Russia did what they had to do. Not saying I support what they did, but from their POV, Crimea is important to them regionally and historically, whereas it means nothing to the rest of the world, so they moved in and took it. It doesn't matter who the president of the US is because they did the same thing to Bush with Georgia.
The bottom line is no one is dumb enough to go to war over Crimea, a region where the majority of people are ethnically Russian to begin with and Russia knows that. Russia will pay a heavy price for this though, probably more than they are willing to admit. The sanctions on Russian banks in particular stings more than Putin will ever admit.
Now that all economies are globally linked you can't just going running around doing whatever you want without threat of sanctions -- well unless you're the US, lol.







