Are you willing to loan him some money, with the promise that he will pay it back once he gets his footing? I really feel for our troops returning to the country, because they have literally seen hell over there and now they're returning to an America in recession, which is totally different from the America they left. They've returned to home, which is now this bizarre land that they probably don't remember how to exist in anymore. These guys need some rehab before they go back into the world.

Anyhow, my soapbox aside, I don't have kids and I have no idea what your financial situation is like, but if I were in that situation, I would loan him the money for one month and make it clear that I expect it to be paid back within a reasonable amount of time, and make it clear how long I was willing to help until he finds a new job...whether it's one month or three months or more. This is a tough job market and depending on where he moved to he may have a really hard time finding work.
And if he can't find it in a reasonable time, he should move back home until he can find something.

Again, I don't have kids and I have no idea what circumstances you're facing. But I would want to give my kid the opportunity to succeed as much as I could, especially considering the sacrifice he made serving the country.

I wish him and you luck! If he keeps trying, he'll find something for sure.