My stepson, Matthew (I became his dad when he was a year and a half old and am the only dad he's known), heads downrange to Afghanistan this week. He is (was) stationed in Grafenwöhr and is a supply clerk for an infantry company in the 172nd Brigade. I told him to be safe, not do anything stupid and to listen to his NCOs because they know more than he does.
He's always been a bit of a knucklehead. It's like the old Army saying that you spend 90% of your time on 10% of your soldiers; I spent 90% of my time on one of my six children (this one). But I worry for him because he is still my son, and see the previous sentence.