Sanctions against RU will give 0 effect.
I have one friend in Crimea (he left KZ 20 years ago), I called him a few days ago. He with family is happy that they are under Russian protection now and already included to RU.
The "new" government of Ukraine are real nazi they already made nazi killer Stepan Bandera (http://en.wikipedia.org/wiki/Stepan_Bandera) as national hero again. Also they are offended to a few weapon warehouses so nazi are already got AK47, grenades, and mobile rocket systems ground to air.
One of new leaders of new governments for example
http://www.youtube.com/watch?v=xY3Bpn5OIC4
I'm far from politics, so I sure that TV of both sides are lie to their watchers.