In 1932, the British-led Galton eugenics movement chose the Rockefellers' Dr. Rudin as the president of their worldwide Eugenics Federation. The movement called for the killing or sterilization of people whose heredity made them a public burden. So, very early on the elite globalist not only projected future population growth, but were willing to do whatever it might take to preserve the standards they set for living with disregard for their fellow human beings. The Galton Institute still thrives today as a think tank and is filled with its own inbreed elite leaders and pathological thinking. 
Hitler had high praise for the eugenics programs and when he took over Germany the Rockefeller-Rudin Eugenics Federation became a department under the Nazi state. Hitler appointed Rudin head of the Racial Hygiene Society. Rudin and his staff of heredity experts were then overseen by SS Chief Heinrich Himmler. 
With completed research in their files and Hitler's plan for the future, the first occurrence of purposefully putting sodium fluoride into drinking water took place in the German ghettos of the early 1930's, and shortly afterwords the infamous prison camps of the 30's and 40's. The camp commanders could care less about sodium fluoride's 'supposed' effect on children's teeth. 
Instead, their reason for adding high amounts sodium fluoride to the drinking water was to sterilize humans and chemically force those held captive into a calm docile 'sheeple' submission and declining state of health. In effect, controlling everyone through mass-medication. By this method they could subdue the population in whole areas without the masses knowing any better. Sodium fluoride also affected the functioning of the pineal gland and Hitler's scientists figured out how to best use this technology to meet their needs. 
The various negative effects of fluoride on humans was also already known within the United States by 1939. Gerald Cox an industry researcher who was financed by the Alcoa Company and the Mellon Institute first recommended fluoridation of water in America. Point to remember is that fluoride is a toxic waste product of the aluminum and fertilizer industry and ALCOA had tons of it which needed disposing of. It was toxic waste until ALCOA could sell it, then it 'legally' became a product. Under the Nazis, the German chemical company I.G. Farben and the Rockefeller's Standard Oil of New Jersey were in essence a single company because of hundreds of previous cartel arrangements. I.G. Farben was led, up until 1937, by the Warburg family, who was also a Rockefeller partner in banking. Following the German invasion of Poland in 1939, Rockefeller's Standard Oil pledged to keep the merger with I.G. Farben even if the United States entered the war. This business arrangement was exposed in 1942 by Sen. Harry Truman's investigating committee. President Roosevelt took hundreds of legal measures during the war to stop the Rockefeller - Farben cartel from supplying the Nazi war machine.
Famous families in recent politics also held hands with Hitler, one being the Bush family who supplied steel to the Germans. Prescott Bush and his Thyssen Steel company were federally charged under the 'Trading With the Enemy Act'. But through behind the scenes maneuvering it was swept under the carpet to be hidden and forgotten. Funny how the media forgets history when it chooses to. At the end of the Second World War, the United States Government sent Charles Eliot Perkins, a research worker in chemistry, biochemistry, physiology and pathology, to take charge of the many I.G.Farben chemical plants in Germany. In his book 'The Truth about Water Fluoridation', Perkins wrote in a letter to the Lee Foundation for Nutritional Research,
"The German chemists worked out a very ingenious and far-reaching plan of mass control that was submitted to and adopted by the German General Staff. This plan was to control the population of any given area through mass medication of drinking water supplies . . . In this scheme of mass control, 'sodium fluoride' occupied a prominent place. . . However, and I want to make this very definite, the real reason behind water fluoridation is not to benefit children's teeth . . .
The real purpose behind water fluoridation is to reduce the resistance of the masses to domination and control and loss of liberty . . . Repeated doses of infinitesimal amounts of fluorine will in time gradually reduce the individual's power to resist domination by slowly poisoning and narco-tizing this area of the brain tissue, and make him submissive to the will of those who wish to govern him . . .
I was told of this entire scheme by a German chemist who was an official of the great Farben chemical industries and was prominent in the Nazi movement at the time . . . I say this with all the earnestness and sincerity of a scientist who has spend nearly 20 years researching in chemistry, biochemistry, physiology, and pathology of fluorine . . .
Any person who drinks artificially fluoridated water for a period of one year or more will never again be the same person, mentally or physically."