The Soviet Union bore the most casualties, therefor the Soviet Union will be the correct answer.
Hopefully this helps!
Production of more food--the system allowed for more food to be produced which fed the workers in an industrial economy.
The 'four-field system' rotates crops between the 4 fields no longer needing to keep one empty because one of the crops would replenish the field with nutrients while the others take nutrients away from the fields. <span />
Answer:
For us to know to not repeat it. because people blindly follow political leaders and that is how the Nazis took power.
I don't believe they are. I don't believe they have been proven real either.