Yes, unless another person steps in and adopts your child.
Attorney Inga Stevens is licensed in Maine. She provides general information on Avvo.com. No attorney-client relationship arises out of the information given here.
Short answer is yes he would be obligated and you would be able to enforce it in the local courts as well as through the military. I sufggest you speak to JAG if he is threatening you plus they would be able to advise you on the child support as well. Good Luck!