You have the option to request a 1 year extension in your current billet, which may or may not be approved depending on several different factors. Your only other option is to take a new set of orders. You are not going to get 1 year orders. There are no 1 year PCS orders except overseas unaccompanied to Diego Garcia (there may be another similar unaccompanied OCONUS billet). You will most likely receive 2 year orders, and you will be able to get out after the minimum time on station, which would be 1 year. Be careful, because if the detailer offers you a billet with 3 year orders, the minimum time on station will be 2 years before you can get out. You'd be surprised how many LTs with 1 year left take 3 year orders and don't realize that they have just committed to an extra year.