First of all you do not know any of the situation other than he got served while in IRAQ. It could very well be that he played evil dictator around the house with the wife and kids and his current deployment is the first chance she has had to get the hell away from his crazy fucked up abusive ass!
She is making a verybig mistake though... if he buys it over there after they are split she gets nada from the insurance and benifits!
It would be in her best interest to stay married while he is deployed and then if he does come back, and not in a box, then she can run like the wind.