Civil unrest in Northern Ireland

Why civil rights became a political crisis

Northern Ireland was part of the United Kingdom, but its constitutional position divided its population. Unionists wanted it to remain in the UK; nationalists wanted a united Ireland. Most unionists were Protestant and most nationalists were Catholic, but religious identity did not determine everyone’s political beliefs or attitude towards violence.

Many Catholics believed that Northern Ireland’s unionist-controlled institutions treated them unfairly. Housing was one grievance. Poor housing affected both communities, but the 1971 census showed that 36% of Catholic homes lacked basic amenities, compared with 31% of Church of Ireland homes and 27% of other Protestant homes. Basic amenities included hot water, a fixed bath and an indoor toilet. Catholics also distrusted the largely Protestant Royal Ulster Constabulary, Northern Ireland’s police force, and the B Specials, its auxiliary force.

The Northern Ireland Civil Rights Association, formed in 1967, campaigned for change. Civil rights campaigning was not the same as the IRA’s armed campaign: seeking equal treatment did not necessarily mean supporting violence or Irish unity. Nevertheless, confrontations between protesters and the authorities helped turn political grievances into a security crisis.

From rioting to armed conflict

Serious rioting in the summer of 1969 led to the deployment of British soldiers to restore order. This began a growing British military involvement in what became known as the Troubles.

The IRA split, and the Provisional IRA emerged as a separate republican paramilitary organisation. It sought to end British rule in Northern Ireland. Some Catholics increasingly believed that the army failed to protect their communities, helping the Provisionals attract support. That belief was important, but it did not mean that the IRA represented all Catholics.

The British government faced a difficult problem: it wanted to restore security, but measures intended to suppress violence could deepen hostility towards the state. Internment and Bloody Sunday became especially important examples of this escalating cycle.

Internment: detention without trial

In August 1971, the British Army began imprisoning suspected IRA members without trial. This policy was called internment. Unlike a criminal conviction, internment did not require a court to establish guilt before imprisonment.

The authorities intended to weaken the IRA by removing suspected members from the streets. However, detention without trial provoked anger because people could lose their liberty without the opportunity to challenge a criminal charge through a trial. Reports of ill-treatment of internees further damaged trust in the security forces.

Internment therefore had consequences opposite to its intended purpose. It encouraged protests and increased recruitment and support for both the Provisional and Official IRA. Rather than simply removing a security threat, it helped convince more people that the authorities were acting unjustly. One major protest against internment took place in Derry in January 1972.

Bloody Sunday: 30 January 1972

On 30 January 1972, the Northern Ireland Civil Rights Association organised an anti-internment march in Derry, also known as Londonderry. Soldiers prevented the march from entering the city centre, and the main march turned towards the Bogside. A smaller section of the crowd confronted an army barricade, where rioting broke out.

Soldiers from the Parachute Regiment advanced into the Bogside and opened fire. Thirteen people were shot and killed that day; another man later died of his wounds. The event became known as Bloody Sunday.

The killings greatly increased hostility towards the British Army. For many nationalists, they reinforced the belief that the army was not a neutral force protecting the population. Support and recruitment for the Provisional IRA increased, strengthening its ability to continue an armed campaign. This explains Bloody Sunday’s significance: it was both a loss of life and a turning point in relations between the army and the nationalist community.

Conflicting accounts of Bloody Sunday

The army initially maintained that its soldiers had responded to gunfire and nail-bomb attacks. Eyewitnesses disputed this account. The Widgery Inquiry, commissioned by Prime Minister Edward Heath, broadly supported the army’s actions, further angering those who believed the victims had been wrongly blamed.

Later investigation changed the official interpretation. Published in 2010, the Saville Inquiry concluded that the victims were unarmed and that the shootings were unjustified. Although this finding came long after the period studied here, it helps explain why Bloody Sunday remained a major historical controversy. An official account produced soon after an event is evidence of what authorities claimed at the time, not automatically a final or impartial explanation.

The IRA campaign and pressure on Britain

After Bloody Sunday, the Provisional IRA leadership intensified its offensive. Its aim was to inflict casualties and make continued British involvement politically unacceptable. The leadership believed that mounting losses would undermine public support in Britain and force British withdrawal from Northern Ireland.

The IRA bombing campaign was therefore intended to achieve a political objective through violence, rather than through civil rights reform. Bomb attacks caused casualties, destruction and disruption, extending the crisis beyond confrontations between demonstrators and the security forces. However, the IRA’s intention to force withdrawal must be distinguished from what it achieved: Britain did not withdraw during the 1970s.

In July 1972, the Provisional IRA exploded 22 bombs in Belfast. Nine people were killed—two British soldiers, a member of the loyalist Ulster Defence Association and six civilians—and 130 were injured. This showed how an offensive intended to put pressure on Britain also inflicted suffering on civilians in Northern Ireland.

The campaign then extended to mainland Britain. Bomb attacks in March 1973 killed one person and injured 180; London shops, including Harrods, were firebombed that August. Attacks on shops and crowded public places brought fear and disruption into everyday life far from Northern Ireland.

Two major attacks followed in 1974:

• 5 October, Guildford: bombs in the Horse and Groom and Seven Stars pubs killed five people and injured 54. The pubs were targeted because off-duty British soldiers used them.
• 21 November, Birmingham: bombs in the Mulberry Bush and Tavern in the Town pubs killed 21 civilians and injured 182 people.

The Birmingham bombings caused widespread public outrage and pressure on the government to prevent further attacks. On 29 November 1974, the Labour government passed the Prevention of Terrorism Act. It banned the IRA in Britain, allowed suspects to be detained without charge for up to seven days with the necessary authorisation, and enabled exclusion orders preventing suspected participants in terrorism from entering Britain. These powers demonstrate how the conflict affected policing and civil liberties across Britain, not just security in Northern Ireland.

Violence continued to the end of the decade

On 27 August 1979, the IRA killed 18 British soldiers at Warrenpoint, County Down, using two bombs against an army convoy and troops responding to the first explosion. This was the British Army’s greatest loss of life in a single incident in Northern Ireland.

Earlier that day, an IRA bomb on a fishing boat at Mullaghmore, in the Republic of Ireland, killed Lord Mountbatten, a cousin of the Queen, and three other people. These attacks combined heavy military casualties with a highly publicised killing connected to the royal family, keeping the conflict at the centre of British political attention.

Margaret Thatcher visited Northern Ireland on 29 August for security discussions. The following day, the British government decided to increase the RUC by 1,000 officers to 7,500. The attacks had prompted further security measures rather than the British withdrawal the IRA sought.

Why the unrest became a British government problem

Escalating violence undermined the Northern Ireland government’s ability to maintain order. On 24 March 1972, Heath announced direct rule, which came into effect on 30 March. Northern Ireland would now be governed directly by the British government, with William Whitelaw appointed Secretary of State for Northern Ireland.

The scale of the crisis was stark: 479 people were killed in 1972, the bloodiest year of the conflict. Internment had been intended to reduce violence, but increased resentment; Bloody Sunday intensified hostility and encouraged IRA recruitment; the IRA’s offensive then placed further pressure on the security forces and government.

The conflict was not solely an IRA campaign: loyalist paramilitaries also attacked civilians and contributed to retaliatory violence. Nevertheless, internment, Bloody Sunday and the IRA bombing campaign were closely connected in the escalation of unrest. Together, they created a continuing problem of maintaining security while rebuilding public trust. Direct rule, emergency legislation and the continuing attacks of 1979 show why Northern Ireland remained one of Britain’s major political problems throughout the decade.