The Shankill Road bombing was carried out by the Provisional Irish Republican Army (IRA) on 23 October 1993 and is one of the most well-known incidents of the Troubles in Northern Ireland. The IRA aimed to assassinate the leadership of the loyalist Ulster Defence Association (UDA), supposedly attending a meeting above Frizzell's fish shop on the Shankill Road, Belfast. Two IRA members disguised as deliverymen entered the shop carrying a bomb, which detonated prematurely. Ten people were killed: one of the IRA bombers, a UDA member and eight Protestant civilians, two of whom were children. More than fifty people were wounded. The targeted office was empty at the time of the bombing, but the IRA had allegedly realised that the tightly packed area below would inevitably cause "collateral damage" of civilian casualties and continued regardless. However, the IRA have denied this saying that they intended to evacuate the civilians before the explosion. It is alleged, and unearthed MI5 documents appear to prove, that British intelligence failed to act on a tip off about the bombing.

The Ulster Defence Association (UDA) is an Ulster loyalist paramilitary group in Northern Ireland. It was formed in September 1971 as an umbrella group for various loyalist groups and undertook an armed campaign of almost 24 years as one of the participants of the Troubles. Its declared goal was to defend Ulster Protestant loyalist areas and to combat Irish republicanism, particularly the Provisional Irish Republican Army (IRA). In the 1970s, uniformed UDA members openly patrolled these areas armed with batons and held large marches and rallies. Within the UDA was a group tasked with launching paramilitary attacks that used the cover name Ulster Freedom Fighters (UFF) so that the UDA would not be outlawed. The British government proscribed the UFF as a terrorist group in November 1973, but the UDA itself was not proscribed until August 1992.