Being English myself I keep an eye on whats going on and it good to see things are much better than they used to be, especially as I remember the 90s. Since the peace treaty, its a small breakaway group known as the "Real IRA" who are still fighting, but its worth noting they are pretty small and more of a gang than the IRA of the 70s and 80s.
There's a few Irish people on here I think who ave posted about how other Irish gangsters in recent times have taken on the Real IRA and killed some of them over territories and drug trafficking.