There is a lot about military indoctrination that is abusive. @PsyDocHill might be able to opine, but I wondered almost 50 years ago, when I was in the midst of it, whether the objective could be achieved without various episodes like the ones cited, and many others. Just before I was sworn in, they finally did prohibit drill sergeants from removing their pistol belts and beating recruits with them.
I need to catch up on this thread, @Charlie Tango, but what you describe was prohibited during my time in the service. Drill Sergeants (and all other instructors) were prohibited from striking recruits with anything for the purpose of inflicting pain or "even" fear. You didn't go there. You can't lead troops into battle if they hate you. They need to have reason to respect, trust, hopefully downright love you as a role-model.
As an "older" staff sergeant, I supervised younger NCOs and they knew that if they used corporal punishment, they would be in a world of pain, consequences-speaking, themselves. I don't remember a single corporal who didn't learn really quick how to command via respect rather than terror.
Of course, there are plenty of ways to inflict suffering upon trainees without laying hands (or belts) upon them. Saluting the flag for hours on end in the rain? I was against it...but it was still in use by "colleagues." Running up a hill, assembling a tent, dismantling it, running down the hill...with it, reassembling it, then repeating? If the soldier was insolent and clearly disinterested in learning how to properly maintain a tent, why sure.
There had to be a rationale anchored in instilling discipline, building resilience and preparing recruits for the absolute hell that is war. Sorry to barge in like this, but I was summoned by a trusted colleague
