It was, of course. But that's not the most important. The most important thing, in my view, was the poverty in Germany. Hitler didn't want to cut down on luxury, like they did in the UK, in order to keep the morale of the German people high. You can only imagine how much effect economy has. Remember, the american people care more about economy then the 50 000 Iraqis that was brutally murdered. Of course, the versailles treaty was an important aspect, but I believe it is overrated. As far as I know, Germany wanted to take back their land in Poland, France, the now called Czech republic. From what I know, Germany went against Russia because of several reasons. One of them was that Hitler hated communsts, especially their economic control, among other important issues. The other was that Soviet started getting allies around in Europe and other places. What Germany did was invade Soviet as a pre-emptive strike, before they would get too powerful. UK, in my opinion, didn't care about Poland at all. If they did, they would give Soviet the same opportunity to withdraw from Poland, which they didn't, and when they started dividing Europe, Soviet was allied with Poland, and oppressed by the dictators there. The only word that can describe my feelings is realpolitik.