First, let me thank you for your commitment to freedom, and your willingness to serve your country. Our world is a dangerous place -- but without the dedication of men and women like you, it would be even more dangerous.
I don't know exactly why God spared your life -- but He knows! That's why I urge you to seek His will, both for the immediate future and for the rest of your life. God has a plan for you, and the most important thing you can do is seek it. And He wants to show it to you! Jesus' promise is true: "Ask and it will be given to you; seek and you will find; knock and the door will be opened to you" (Matthew 7:7).
How do you seek God's will? Begin by yielding your life without reserve to Jesus Christ. By a simple prayer of faith tell Him you know you need His forgiveness and guidance, and that you want to give your life to Him. Then ask Him to help you grow in your faith -- through prayer, the study of the Bible (which is God's Word), and fellowship with other believers in a church with Christ at its center.
Then make your future a matter of prayer every day. God may not show you the whole path -- but He'll show you the next step as you trust Him. God bless you.