I watched the BS World Documentary "Hitler's Children".
In a word, it is a "plan to mass-produce children of a specific race (Aryan race).
This is one of the plans (implemented at the same time as the plan for the extermination of certain ethnic groups) based on the dictator's idea of the "Thousand Year Kingdom of the Third Reich.
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A long time ago, I drew an illustration like this one, and in that program, I really saw an image that looked exactly like this illustration, which made me feel mildly nauseous.
Of course, back in 1940, there were no "test tube babies" or "cloning" technology.
Therefore, "Ravensborn" (fountain of life) were established in Germany and France to "produce" children, where reproduction took place between living men and women.
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In Japan, the number of births before and during the war is also high.
This was due to the high risk of mortality in terms of sanitation, social infrastructure, and medical technology, as well as the fact that childbirth was encouraged by national policy to "give birth and reproduce" from the perspective of a "wealthy nation with a strong military.
"Have an average of five or more children" (the "average" part is amazing)
"Is this a pipe dream?" of today, was incorporated as a policy, and the Japanese people, who were disciplined, had accomplished this.
And the government at that time imposed preferential treatment for families with many children, and cold treatment for families with no children and single people.
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To be honest, I like neither "Ravensborn" (the fountain of life) nor "Give birth, breed.
I don't want to see a society that mass-produces children under the pressure of state power.
I would rather continue to watch the nation decay with declining birthrates and aging population at the free will of individuals.