Yes and no - of course you are right in pointing out this slip up, but it was clear by the time Germany invaded Poland that he was on a mission that had no end, and there was concern that he was going for the lot. I view British invovlement it as an act of self-defence as much as anything else.
In GIbraltar give it back to SPain, who have asked nicely very recently - I think ti was Blair who told them to piss off. Northern Ireland, I think Britain should campaign to remove themselves and let NI either be independent, or rejoin Ireland (<im sure there is a more sophisticated answer to this, but thats my laymans answer). Falklands are a military outpost, held for strategic reasons - if Argentina want them they should have them.
Pretty much all European countries in Europe at the start of the century had fascist characteristics in my opinion.
My neighbour signed up and spent two years in NI, got bullied repeatedly and left dejected. He only signed up cos he failed at school and didnt know what else to do. Nothing patronising about recognising that as a fact.
The bottom line is there is an onus on soldiers to make a decision not to take part in illegal/immoral wars no matter what their commanders may say - Iraq a clear cut case IMO.