Plethora asked.... "You were in Nam ... I have a question to which I'd like an honest answer please. Can you say you never saw any of your fellow comrades do something immoral that was unnecessary? How many civilian deaths did you witness?"
I only give honest answers.
Sometimes not very good ones, but always honest.
I think everything done on both sides in a war to inflict pain and injury on the other side (civilian or not) is pretty much "immoral". If I had it to do over, I would not have gone to Nam, whatever the personal repercussions. "Too soon old, too late smart." as they say.
If you mean did I ever see anyone commit acts like killing woman and children, abusing prisioners, My Lai kinds of things, the answer is definitely not. I was with a company on the ground in armed combat for the entire year, so I saw a considerable amount of combat. In all that time, I saw no civilian deaths.
What I did see several times was American soldiers killed or wounded because we, the leadership, the press etc. were overly concerned about civilians, women and children. Because of the added caution to not use jet strikes,artillery etc when there was a chance of collateral damage, I saw soldiers killed and wounded that very well might not have been if we had been allowed to use our fire power properly and not been so "Western Culture Civilized".
The extreme case of this of course, is when women and/or children have concealed weapons and open up on soldiers who gave them the "benefit of the doubt" as to their intentions. I did not personally see that happen, but have friends whom I believe, tell me it happened to their units.
One personal incident....my company was in the jungle climbing down a difficult mountain side when we spotted about a dozen people in a rice paddie, but could not tell if they were "armed" or not. It was the Ahn Lao Valley which had been cleared of civilians and was a "free fire zone" meaning anybody in there was automatically, "the enemy". I was the company Forward Observer and called a fire mission in to the artillery battery supporting us and was going to direct artillery on them to kill them before they spotted us.
At the last minute, waiting for the Battery to tell me they were ready to fire, and all the time watching the actions of the people in the Rice Paddy, , I got the feeling they were not Viet Cong and told the Company Commander that I did not want to fire the Artillery at them. He reluctantly agreed.
It turned out they were women and children who had "snuck in" the valley to harvest rice. If I had killed them, I would have had that on my conscience for life, if they turned out to be VC and ended up killing some of my comrades because I had not fired the artillery, I would have had that on my conscience for life. "Just another day in Nam" as they say.
Certainly a lot different then another day as a commercial fisherman or other dangerous civilian commercial jobs though.