You are either committed to being a military pilot or you are not. If the latter is the case, you will fall at the first hurdle.
Even in this day and age, the Armed Forces require more of their aircrew than simply the ability to drive airframes. Whilst it is accepted that not everyone in the military stays on until faced with retirement, using Mrs Windsor's flying school simply as a stepping stone to becoming a systems manager ferrying the great unwashed is unlikely to be viewed sympathetically.
Take my comments in the spirit in which they are meant. Be absolutely sure in your own mind as to your motives (and indeed motivation) before considering the military.
Bon chance!