Security Forces Duty Stations?

More than likely you will get sent to a missile base. That is where the majority of SF are stationed in the USAF. That would be FE Warren, Malmstrom, and Minot. There are about 15,000 Active Duty Security Forces, around 4-5000 of which are at those three bases. Because SF can go anywhere, you will have little to no choice in where you are sent.