Germany needed oil. In fact, it's one of the main reasons they lost the war. They had two possible sources of oil, North Africa / Middle East and Russian oil fields. Thanks to the mindless goyim in the US, they weren't able to secure the African oil fields and instead of taking Moscow had to divert to the Russian oil fields, which was inevitably their downfall in Russia. If they had been able to free Russia from the jews, they would have had millions of Russians join their cause as many Russians despised the bolsheviks but were powerless against them. Kind of like today, we hate what the jews are doing to our country, but they control the minds of so many goyim that we are currently overwhelmed and outnumbered. Ask yourself, if a white army invaded the US today and started murdering all the peaceful protestors and totally legitimate government, would you fight against them or join them?