You cannot break a person the way you break a horse or a dog. The harder you hit a person, the more bitter he becomes. To break his will, to break his spirit, you need to break his mind.  People think that they can fight with honor, that there is some correct way to kill their enemies - this is nonsense, an anesthesia for the conscience. You need to experience the real horror of murder, to destroy this illusion. Show them how scary it is to kill a person. And then show that you enjoy it. Wound, then finish off the wounded, burn, cut the throat. If you destroy their idea of ​​what a person is, you will become their personal monster. They will be afraid of you, and you will become stronger, you will become a better person. But you need to remember that this is a demonstration. The lion roars for the same purpose. The gorilla hits his chest. And if you get too carried away by this, you will become mired in horror - you will become a monster, you will lose part of yourself, you will become less than human. And it can be fatal.