Need SOME comfort -- son - my baby - heading to Iraq?

He's a new Corpsman and I keep being told that the Marines will watch out for their "DOC" and yet, I can't help but be scared to death.....is there ANYTHING positive someone can give me? He is a new daddy too......he's going to be based in California within a couple days and then heading out soon afterwards....I'm more of a mess than I thought I'd be. He KNEW what he was getting into......I'm the one with the problem. Any encouraging words will be helpful -- thank you!!!