I absolutely agree with you. But in practice, the lack of morals will be a strong incentive. One one hand we have commanders who may want to get away with war

I absolutely agree with you. But in practice, the lack of morals will be a strong incentive. One one hand we have commanders who may want to get away with war crimes, and on the other hand are autocratic regimes, that don't need as many like-minded soldiers to commit large-scale war crimes.