 He still preached that horse can be used en masse, but already realized that cavalry had irreversibly lost its prestige to armor.Grow wrote that, had Herr supported complete mechanization of cavalry, there would be no independent Armored Forces but a strong, mechanized U. S. Cavalry.Herr did exactly the opposite; even in 1942 he still struggled for the horse, requesting Marshall for "an immediate increase in horse cavalry."