He literally got his warfare ideas from novels written by a lifelong scam artist. In his last days as the Red Army approached he consulted the books for ideas, and found that in one the protagonist is being advanced upon and basically just summons an army of Germans out of nowhere, so that's what he tried, except the remaining soldiers were either very young, injured, traumatised from already getting rekt, and also had no weapons (or just didn't exist and his generals made them up to keep him happy)

when they were competent it was on the subject of genocide

that was kinda my point yeah