The Irish National Liberation Army was one of the most ruthless terrorist organisations during the troubles in Norther Ireland. Formed in 1974 as a splinter group of the Official IRA, the INLA's campaign of murder throughout the 1970s and 1980s included such notorious acts as the bombing of the Droppin' Well in Derry in 1982 and, perhaps most infamously, the kidnapping and mutilation of a Dublin dentist by former member, the "Border Fox".