PN,
Good point - I had assumed he was temporarily in Spain ('don't assume -check'; I can hear my mother, even now!!!). However, in Cyprus and Germany there are overseas ATC squadrons and if Windmill is anywhere near Gib, there might be a cadet organisation of a different cap badge he could go to.
If, however, he is resident in Spain, do they have an equivalent type of organisation - don't know.
O-D