54 years ago, ST:TOS episode A Taste of Armageddon aired. In it, a culture has computer simulated war for 500 years and "casualties” tailed by the machine must report to euthanasia chambers. At the end, Kirk gives a speech.

Death, destruction, disease, horror... that's what war is all about, that's what makes it a thing to be avoided. You've made it so neat and painless you've had no reason to stop it.