Alfred Jodl Quote
In view of the vast size of the occupied areas in the East the forces available for establishing security in these areas will be sufficient only if all resistance is punished not by legal prosecution of the guilty but by the spreading of such terror by the occupying power as is appropriate to eradicate every inclination to resist among the population. The competent commanders must find the means of keeping order not by demanding more security forces but by applying suitable Draconian methods.
July 23, 1941 order issued to the German Army. Quoted in "The Nuremberg Trial and International Law" - Page 163 - by George Ginsburgs - Law - 1990.