One of the things that interests me is the way that psychologically messed up soldiers were viewed after the different conflicts.

I had always thought that shell shock was pushed aside and not talked about like combat fatigue post ww2 etc.

Then i read a series of novels written in the 1920's. The main character talks about an acquaintance that "is still a bit shell shocked" but he isn't looked down apon for it and is treated accordingly by all. It is just how he is now.
It surprised me to the point that it has stuck in my mind for 20 years.