Harber Bosch was present before WW2. WW2 was mostly fought for Lebensraum, aka place to grow food with medieval methods (no fertilizer) for a industrial sized n

Harber Bosch was present before WW2. WW2 was mostly fought for Lebensraum, aka place to grow food with medieval methods (no fertilizer) for a industrial sized nation. They could easily have fed all these people, if free trade and fossil fuel imports would have been available and guaranteed. No reason to start the whole war in the first place. But they were not- and could not be relied on if a colonial empire singled you out and cut trade. Thus the war aims, the goals and execution. The existence of the british empire or a similar empire was the precondition for WW2.