Hello, I just received the 4-year Army ROTC scholarship for my number one choice of college, however, I'm not sure what I want to major it. I have been contemplating either a path in engineering, business, or biology. I applied to the scholarship under biology, and as I said I received the scholarship. As of right now, I believe my number one career choice is to become a physician's assistant. However, that requires 2-3 years of schooling after receiving my undergrad. My question is, would I be able to do this schooling before my required military service? I feel if I were to have to wait until after my 8 years of service I would not be eligible to apply to physician's assistant programs due to the large gap between my biology degree and applying for PA school. Also, if I were to switch to engineering or business would I be able to go get my masters in either during my years of required service?