IG Farben was led, up until 1937 by the Warburg family, Rockefeller's partners in banking and in the design of Nazi German eugenics. Following the Nazi invasion of Poland in September 1939, Britain and Germany declared war on each other and World War II began. But later that month, Standard Oil executives flew to the Netherlands on a British Royal Air Force bomber and met with IG Farben executives.
Original: The International Nazi Network