Being a bit selective re-Churchill. Yes an underground movement would have fought on it would have targeted the occupying forces, as happened with the SOE backed resistence movements in occupied Europe. It would not have deliberately targeted and terrorised the civilian population as the PIRA did. As I have said before if any organisation killed and maimed the number of civilians that the PIRA did and at the same time ruined any chance of economic improvement along with it's accompanying prosperity, then had the gall to tell it was protecting me, I'd have no hesitation in telling them to bugger off and protect someone else. No doubt those with the 'glorious vision' firmly fixed in their mind's eye would view the innocent civilian deaths as just so many eggs required to make the omelette. No nationalist/republican, IRA appologist has ever been able to provide me with the name of one single IRA volunteer who ever gave his life to protect a single civilian - Examples of members of the RUC and British Forces who have done exactly that are well known.
If you bothered to base your arguement on fact instead of emotion you would quickly have seen that from the middle of the 1700's no country has done more to erradicate slavery in this world than the United Kingdom - Fact.