how many years do you need till retirement? how many have you already done prior service? Measure up your years and see how many more you need. Must be willing to deploy as that will happen. I am a retired Army reservist, retired in early 2010. I am a FNP now but was a nurse in the Army. It takes more time than they say it does, training can be easy or hard depending on the deployment cycle. Best wishes, if you have any further questions, feel free to ask away.