The Kingsmill massacre was a mass shooting that took place on 5 January 1976 near the village of Whitecross in south County Armagh, Northern Ireland. Gunmen stopped a minibus carrying eleven Protestant workmen, lined them up alongside it and shot them. Only one victim survived, despite having been shot 18 times. A Catholic man on the minibus was allowed to go free. A group calling itself the South Armagh Republican Action Force claimed responsibility. It said the shooting was retaliation for a string of attacks on Catholic civilians in the area by Loyalists, particularly the killing of six Catholics the night before. The Kingsmill massacre was the climax of a string of tit-for-tat killings in the area during the mid-1970s, and was one of the deadliest mass shootings of the Troubles.

The South Armagh Republican Action Force (SARAF) shortened simply to the Republican Action Force (RAF) for a small number of attacks in Belfast was an Irish republican paramilitary group that was active from September 1975 to April 1977 during the Troubles in Northern Ireland. Its area of activity was mainly the southern part of County Armagh. According to writers such as Ed Moloney and Richard English, it was a cover name used by some members of the Provisional IRA South Armagh Brigade. The journalist Jack Holland, alleged that members of the Irish National Liberation Army (INLA) were also involved in the group. During the same time that the South Armagh Republican Action Force was active the INLA carried out at least one sectarian attack that killed Protestant civilians using the covername "Armagh People's Republican Army". According to Malcolm Sutton's database at CAIN, the South Armagh Republican Action Force was responsible for 24 deaths during the conflict, all of whom were classified as civilians.