I beg to dissent from this proposal from Kitbasher :
"Shouldn't this be qualified to mean a nation state that does not exist anymore, but did in the past and operated aircraft? That would rule out the Hanseatic league, Roman Empire, Mongol Hordes, etc (although the idea of a Mongol Air Horde does have have a rather barbaric appeal!). "
IMO, it would detract from the fantasy and amusement value of the GB. Long live the Mongol Armoured Hordes, and the Hanseatic League Hovercraft!
