I'm quoting myself as a reference.
There was more than one officer in Vietnam who was 'fragged' for issuing illegal or immoral orders to his troops.
Not by me ! Even tho I served then, I wasn't lucky enough to be assigned there.
I'm just pointing this out to show that there are, I'm sure, people today who would not follow illegal or immoral orders, just as there were then.
Well put and absolutely true, some even were killed by friendly fire, that is what I heard when I was there.