Awesome!
Mail: the lifeline for the military.
Getting mail out at sea when I was in the Navy was one of the few things that made life out at sea tolerable.
During combat, I can only imagine how much MORE important it is to receive mail.
Also in high demand for soldiers, should you care to send another package to him are baby wipes (they can't take showers all that often, and this is one way to attempt hygiene in the desert)