The answer depends upon more information. Has your country issued any warrants for your arrest? What military training did you receive? Did you engage in any conduct in the military that could constitute persecution? You need to meet with an experienced immigration attorney prior to filing the petitions.
NYC EXPERIENCED IMMIGRATION ATTORNEYS www.myattorneyusa.com; email: firstname.lastname@example.org; Phone: (866) 456-8654; Fax: 212-964-0440; Cell: 212-202-0325. The information contained in this answer is provided for informational purposes only, and should not be construed as legal advice on any subject matter.
This is really an immigration law issue. However, it is important to remember that military recruiters evaluate potential recruits, and waivers are allocated on a case-by-case basis. Unfortunately, in a lot of cases whether or not you are able to enlist may depend on how much effort the recruiter is willing to put forth. Feel free to give me a call, I would be happy to discuss your options with you. The initial consult is always free. Good luck.