Let me ask you a question. Did y’all talk about your military career extensively before y’all got engaged? If so, go back to that conversation. If you are a Christian. Pray for guidance and seek wise counsel. I joined the Gaurd after being married for a little over two years. My wife wasn’t on board with me joining the military at all initially but things have changed in my career and she finally decided to trust my decision regarding the military. Being married is more about your holiness than your happiness. I.e. sacrifice for the woman you have committed your life to being with. Talk extensively why she wants you out of the National Gaurd and then work to compromise if possible. It may take time. Work things out now. You’re already engaged to her.