Albeit I believe I might be terribly wrong on some of this, I think that I better have a picture, than none. My own answers are like this:
The USA avoids a direct conflict with the Russians, by subverting the country to join the EU, which then will allow US troops to be placed near Russia. I would think that this could give the USA a win at first-strike chance in a possible WW3 scenario. They don't even need to ship an atom bomb over from the USA, but can use the ones already placed in the Ukraine. Germany and Ukraine seem to be critical to the US's WW3 strategic scenerio superiority. It could also just be the massive amounts of Oil in the Ukraine, which the US or the EU (which currently means Germany) could tap on. I wish I could know the truth about all this. Yes it's surely just about power and money again, but such an oversimplification removes a lot colors and nuances from the grand picture.