Yes
"Combat is a tough place to suddenly grow up in."
Truth.
And it will demand to be faced, one way or another. Some one said to me once, in a bar full of guys who knew the reality of it. You'll recognise the voice.
"Some nights I wake up in a cold sweat, dim recall of nightbeasts crawling through my head. I get up and sit in my chair, doing my best to not sleep."