I was in for 15 years before medically retired due to wrecked knees and a compressed spine thanks to airborne. I would love to advise you on where to put the extra money in regards to investments, however, it is not my place to do so. All I can say is, research stock trading and don't let your emotions place trades. Most people lose money in stocks so take every precaution that you can to reduce your risk of doing the same. Stay safe over there and thanks for serving. God only knows the sacrifices made by a soldier and their family.