PTSD

From an interview on the film Wartorn 1861-2010.

The premier of this film was at the Pentagon. And there was a panel afterwards ... it’s a very interesting panel discussion, and it featured a Medal of Honor winner. And he looked at all the generals, and he says, "OK, some people say it’s ten percent post-traumatic stress. One of the generals says it’s 30 percent. You know, you know, and I know it’s 100 percent." Anybody who engages in warfare is scarred forever.
(Jon Alpert, co-director of Wartorn 1861-2010.)

I have nothing to add.