I am on F-1 student visa in the US. I have been here in US for more than 4 years. I have excellent English language skills, healthy. Plus, I am MD from Armenia. I know Armenian, Russian fluently. I passed Medical Board exams with very high scores in the US. My medical residency did not work out because they wanted green card. I want to get my green card through military and then serve as a doctor in Military. I can be just a soldier in the beginning and then after I fulfill the requirement I will serve in the military as a doctor. Please tell me if this is possible. What options do I have? I am single and I don't want to get married.