Listening to Sen. McCain this morning 03-26-14 he said he doubts Russia will move in on the Ukraine but let me offer this one up and it should be very familiar to history buffs. Suddenly we receive news hundreds if not a thousand Russian soldiers were found massacred somewhere in the Ukraine (recall Poland in WWII and the Gulf of Tonkin-Viet Nam). Putin declares this horrible act of aggression as an act of war thus declares war on the gangsters. Note the Russian military thinks nothing of killing their own as we witnessed in WWII. For McCain to say they won't go in but in the same breath say Putin wants the U.S.S.R back does not fit. Second thing is if we decide to re-arm Poland Putin could use that as an excuse to invade anywhere in range of the nukes.
Think if Trump get elected how much resistance he will face with in all phases of our country from people to military to politicians. He must not win.
Look at when U.S. weapons go to battle, Iraq or with the Israelies versus Russian equipment. The numbers of tanks, planes etc are less relevant than the ability of those tanks and planes.
Putin can make small moves to take back some of a lost empire, but has no real ability to move into Europe.
Where he can and will hurt us is in places like Syria and Iran where his greater personal strength will win out.
The lesson of WWII is that isolation does not work. Had the USA not entered WWII Germany would have gained the nuclear bomb and ruled the world. Arguably, WWII would not have happened if Hitler/Germany was not convinced the USA would stay out and was so expanded that it evolved to a "world war" as a result.
The dynamics are different now with nuclear weapons, which makes matters far more rather than less dangerous. The action in the Ukraine is putting maximum pressure on other countries to develop weapons of mass destruction.
So, if you feel comfortable with 75 3rd world dictators and theocrats having biological, chemical, dirty bomb and nuclear weapons, then what is happening now is just fine to you.