Yes, it's intersting isn't it? I guess it's about the difference between genuinely being a Christian, and identifying yourself as part of a "tribe" on the supposed basis of your religion. And it's the tribalism which leads to wars, not the actual religion that it's meant to be based on.
That's why I get angry when people come out with stuff about how religion is responsible for so many wars - it isn't, it's just a label for their tribes. Religion doesn't cause the war any more than football causes violence. It's just an excuse for "us and them" thinking.
Well I would disagree that there are not many Christians in Ireland but I would agree that those involved in "The Troubles" (which was a very small minority contrary to what the media might lead you to believe) were not acting in a Christian way.