Actually being in the military may mean you have no state to Uncle Sam, but in matters of familial law, it is what ever state they are stationed in at the time of the filing.
An example. Hubby's brother, native of Texas. Married, was stationed at Ft. Bragg in NC. When they petitioned for Divorce the petition was filed in NC and was subject to NC law.
So it would be helpful if he had at least posted his current billiting.