Anthony Sutton explains the connection between the United States and Russia at the level of technology sharing, especially for military applications. He also speaks at length about the funding circle that brought to power Hitler and the Third Reich, and the United States funding of the Bolshevik Revolution in Russia.

Though not covered in the following video the United States population carve up at the start of the Second World War had over 50% of German heritage.

Further Study
Three World War Strategy
The Light Bulb Conspiracy