EW,
Referring to your second paragraph you have a decent starter for 10. Knowing the MOBs and the aircraft types that operate at each would be a start, and what each does. Locations of permanent bases and longer term operations also. The more in depth you can go the better (RAF Annual (Magazine), Air Forces Monthly etc are good hard copies, books tend to date quicker). The same can be said for the training system; you should ideally be able to describe (at least roughly) your pathway from the carpet on day one in College Hall on IOT up to the point you are sent to an OCU.
Alongside that, and what Drewski mentions, know about NATO, what it is what it does etc, and how it differs to our involvement and relationship with the UN.