In Götz Aly's book 'Final Solution': Nazi Population Policy and the Murder of the European Jews, Aly points to a very specific proposal by Rolf-Heinz Höppner [de], who at the time was simply an SS-Obersturmbannführer (or an SS Officer).[2] This letter written by Höppner was sent to Adolf Eichmann about a viable solution to solve the Jewish question. In a portion of the letter he wrote: