Sadly it appears Russia (and by this I mean Putin and his cronies more than anything) is trying to intimidate its neighbors with its military after Ukraine ousted its pro-Moscow President amid protests over his questionable turn around from the EU in favor of Russia. Sound familiar? (I.e. 2008 Georgia invasion). Whether you support the Ukrainian’s protesters or the ousted President, I think it’s fair to say that no one wants Putin invading another country, especially when it would merely confirm in the eyes of many in the world that he has become nothing more than a dictator.
Do I think he will? Possibly, but only after he foments rebellion and stokes ethnic tensions (as he did Georgia) to justify an invasion to “protect” Russians and get nationalistic pride ramped up at home to quash any who question his actions. Such measures in the past with the Ossetians certainly didn’t get them what they wanted from the Russian invasion of Georgia – an independent nation combining North Ossetia (which Russia hypocritically refuses to give up) and South Ossetia (which Russia recognizes as an Ossetian independent state).
As for our own politicians, I have no idea if they’ll continue to support Ukraine or if they’ll allow Putin to do as he pleases. Given the recent weak willed and limp wristed approach of our government to world affairs, I do not think things bode well for Western support for Ukraine.
Ultimately I would prefer Russia and the West (and honestly, everyone) alike stay out of Ukraine’s affairs and let them work it out internally.