1) In the mid 1990s, in exchange for the Ukraine giving up their (then post Soviet Union) nuclear weapons, the west promised to protect the Ukraine.
If the west (meaning all the countries that promised to protect the Ukraine) does not live up to our collective promise to protect the Ukraine in exchange for giving up their nukes and we allow Russia to roll all over the Ukraine... Iran tells the west to stuff it and they will go ahead and build their nuclear weapons.
2) I think the whole Ukraine situation was orchestrated long before the Olympics. I believe we may someday learn that (now) former Ukraine President Viktor Yanukovych was working with Russia all along: the flip flop between joining the EU vs. staying true to Russia, killing so many protesters, slipping $70 billion to Russia from the Ukraine national cash, and then he somehow ends up in the safe hands of Russia.
We have been set up. I believe it was all orchestrated by Putin to take back either Crimea or the entire Ukraine. Everything leading up to this was just fluff!