Let's not discount the possibility of civilians taking up spare capacity. I agree that where ex military are suffering from psychological probems these should if possible be addressed at these centres, but I dont know enough about them to know if they have the specialist staff that this would require. Let's certainly prioritise military patients, after all thats what the charity givers who paid for these facilities had in mind, but as someone in Whitehall suggested, that girl who lost a leg in the Alton towers accident would greatly benefit from the treatment there, for example, so why not if space is going begging?