Can you HAVE spoilers after 50 years ? well here they are
From the last episode are we to learn that...
1.) His own government was holding him..
(because)
2.) The Village was in England . (and not 30 miles from Poland)
or did I miss something ?
That's far too literal an interpretation, as the series had gone into full & glorious multi-layered allegory. The brief glimpse of Number 1 unmasked shows who was holding Number 6 -- and who is holding each one of us, for that matter -- and The Village was both Everywhere & Nowhere (or, of you prefer, within us) (or, if you prefer, the entire manmade world).
I know, the trend today is to look for neat, tidy, logical answers -- but that would be far too restrictive & self-defeating for The Prisoner. In a way, the real question to be asked in this series isn't "Who?" (although it is vital on the symbolic level), but the question Number 6 asked in "The General": "Why?" The questions here are ultimately philosophical & existential, not simply factual.