I don't know about ETA but the IRA would certainly been seen as Freedom Fighters by many Irish Catholics in both the Republic of Ireland and here in Northern Ireland. They are fighting for freedom from Britain. -- JamieTheFoool
It is probably worth noting that Provisional IRA is currently one of the paramilitary groups causing a blockage in the peace process that both British and Irish governments support. It is a curious freedom that they are fighting for as they are opposed to an ally of the government in whose name they act.