Quote Originally Posted by Dawg61 View Post
This was a major problem for Japan after we stopped selling them oil too. Sounds like Hitler was just convinced that Russia would attack him and he did what he always did and tried to blitzkrieg them first before they knew what hit em. Country was way way too big to fall to a blitzkrieg attack. Africa, France, Middle East and all the countries he took over had lots of oil.
That's pretty much it. He knew the Russians would eventually join the war in all likelihood, so he wanted to throw the first punch. But for the reasons I enumerated, you can't really attack Russia conventionally. They've mastered the Scorched Earth Defense.