My babies father is not in the picture he does not take care of her and admitted he can not be a dad. He sees her every now and then when I initiate the meeting. She’s 3 mo.

I am getting married in 2 weeks to my fiancé who is in the army (active duty). We were wondering if we could claim her as a dependent for DEERS since I am the custodial party and her dad does not see her or have any Custody as that is his choice.