Completely different generation that sucked up and tried their best to get on with life after the War. A lot of those of the Greatest Generation spoke very little of their experience until after Vietnam.  It was referred to as 'shell shock' and not well-understood at all back then. Johnny Cash's "Ira Hayes" speaks closely to that. I know a couple Korean vets, including an uncle, who to this day, will not speak about their service time.