Foreign graduate nurse looking to join the reserves.

Im a 37 yr old nurse for about 10yrs now . Im a medsurg and psych RN (two jobs , one of them is per diem only) . Im looking to join the reserves. I spoke with a recruiter before and since im a foreign graduate (but a us citizen) his advice for me is to take a masters here so they can consider me. Is there any other option that i can do in order for me to join? Any AMEDD recruiter near orange county? Thank you.