The Troubles were a violent conflict in Northern Ireland from roughly 1968 to 1998, involving Republican and Nationalist communities who wanted a united Ireland, Loyalist and Unionist communities who wanted to remain part of the UK, and British security forces. Over 3,500 people were killed before the Good Friday Agreement ended the worst of the violence.

What caused the Troubles?

The Troubles did not emerge from nowhere. To understand them, historians trace back to the partition of Ireland in 1921, which created the Irish Free State in the south and Northern Ireland — remaining part of the United Kingdom — in the north. Northern Ireland had a Protestant Unionist majority who supported the Union, and a significant Catholic Nationalist minority who aspired to a united Ireland.

For decades after partition, the Catholic minority in Northern Ireland experienced systematic discrimination. Catholics faced disadvantages in:

  • Housing allocation: Local councils, often Unionist-controlled, allocated housing in ways that favoured Protestants
  • Employment: Discrimination in hiring — especially in the police force (the Royal Ulster Constabulary was almost entirely Protestant) and in many industries
  • Electoral boundaries: Gerrymandering of constituency boundaries diluted Catholic voting power
  • Emergency powers: The Special Powers Act gave authorities wide powers to detain people without trial

Inspired by the American Civil Rights Movement, Catholic communities in Northern Ireland began campaigning for equal rights from the mid-1960s. The Troubles erupted from the violent response to those campaigns.

What were the key events of the Troubles?

Year Event Significance
1968 Civil rights march at Derry attacked by police Images broadcast worldwide; widely seen as the start of the Troubles
1969 Battle of the Bogside; British Army deployed Army initially welcomed by Catholics, soon seen as occupying force
1971 Internment without trial introduced Mostly targeted Catholics; confirmed Nationalist distrust of the state
1972 Bloody Sunday, 30 January British paratroopers shot 14 civilian marchers dead in Derry; IRA recruitment surged
1972 Direct Rule from Westminster imposed Stormont Parliament suspended; UK government governed NI directly
1979 Lord Mountbatten assassinated; Warrenpoint attack IRA killed 18 British soldiers in one day; Mountbatten killed on same day
1984 Brighton bombing IRA nearly killed Prime Minister Thatcher at Conservative Party Conference
1993 Downing Street Declaration British and Irish governments stated NI's future would be decided by its people
1998 Good Friday Agreement Power-sharing government; decommissioning of weapons; release of prisoners

Who were the main paramilitary groups?

Understanding the Troubles requires knowing the three main groups whose violence drove the conflict.

The IRA (Irish Republican Army): The Provisional IRA, formed in 1969 following a split with the older Official IRA, was the main Republican paramilitary organisation. It pursued a campaign of bombing and shooting aimed at British soldiers, police officers, and later civilian targets, seeking to make Northern Ireland ungovernable and force British withdrawal. The IRA also carried out attacks in England, including pub bombings, a mortar attack on Downing Street, and the bombing of the City of London.

Loyalist paramilitaries: The Ulster Defence Association (UDA) and Ulster Volunteer Force (UVF) were Loyalist organisations that carried out attacks on Catholic civilians, often in revenge for IRA actions. Their violence was often sectarian rather than targeted at security forces.

British security forces: The British Army and Royal Ulster Constabulary (RUC) fought the IRA and tried to maintain order. Some soldiers and police officers committed serious abuses; the Bloody Sunday killings in 1972 and the activities of undercover units (later investigated by the Saville Inquiry and other inquiries) damaged the legitimacy of the security forces in Nationalist communities.

What was Bloody Sunday?

Bloody Sunday (30 January 1972) was one of the pivotal moments of the Troubles. On that day, British Army paratroopers opened fire on a peaceful civil rights march in the Bogside area of Derry, killing 14 people (another died later) and wounding many more. All those killed were unarmed civilians.

The immediate British government response — the Widgery Tribunal of 1972 — largely exonerated the soldiers, provoking fury in Nationalist communities. IRA recruitment surged. It took the Saville Inquiry (1998–2010) and Prime Minister David Cameron's public apology in 2010 to establish officially that the soldiers had fired without justification and that all those killed were innocent.

Bloody Sunday is a case study in the problem of official sources. The Widgery Tribunal was commissioned by the government whose soldiers were under investigation; it heard selectively from witnesses and accepted the military's account. Historians who examine the same events from other sources reach very different conclusions. An "official" document is not the same as an accurate one.

What was the Good Friday Agreement?

The Good Friday Agreement (GFA), signed on 10 April 1998, ended the formal phase of the conflict. It was the result of years of secret and open negotiations involving the British government, the Irish government, Unionist and Nationalist political parties, and (indirectly) the paramilitaries.

Key provisions included:

  • A power-sharing Executive in which Unionists and Nationalists would govern Northern Ireland together
  • The decommissioning of paramilitary weapons
  • Early release of paramilitary prisoners
  • Recognition that Northern Ireland's constitutional status could only change with the consent of a majority of its people
  • Cross-border institutions linking Northern Ireland and the Republic of Ireland

The GFA was approved in referendums on both sides of the border. It did not end all violence immediately — dissident republican groups continued attacks for years — but it ended the sustained campaign that had defined the Troubles.

Frequently asked questions

Why are the Troubles difficult to explain objectively?

Because almost every term used to describe the conflict is contested. "Terrorist" or "freedom fighter"? "Murder" or "execution"? "Security forces" or "occupation"? Each label carries a political judgement. Historians of the Troubles learn to use precise language, to identify the perspective of their sources, and to distinguish between what happened and how different communities interpreted what happened. This makes the Troubles unusually good material for practising historical thinking about bias, perspective, and evidence.

What is the difference between Nationalists and Republicans, Unionists and Loyalists?

These terms describe different degrees of commitment to the same broad positions. Nationalists and Republicans both want a united Ireland; Republicans are generally more willing to use or condone political violence to achieve it. Unionists and Loyalists both want Northern Ireland to remain in the UK; Loyalists are generally more associated with paramilitary violence in pursuit of that aim. In everyday usage the terms are sometimes interchangeable, but they have distinct political meanings.

How did the Troubles end?

There was no single moment of ending. The GFA (1998) was the political settlement; the IRA's decommissioning of weapons was completed in 2005; the final dissident republican attack that killed a police officer occurred in 2011. The transition from conflict to politics took years and involved enormous compromises by all sides. Some people argue the Troubles never fully ended — sectarian tensions remain, communities are still largely segregated, and political disputes continue. But the sustained campaign of violence that defined 1969–1998 is over.

How many people died in the Troubles?

More than 3,500 people were killed between 1969 and 2001. Of these, approximately 58% were killed by Republican paramilitaries, approximately 29% by Loyalist paramilitaries, and approximately 11% by the British security forces. About 52% of all victims were civilians. These figures come from systematic research by groups such as the Conflict Archive on the Internet (CAIN) database, which is one of the most comprehensive attempts to document who died and who killed them.


Analyse sources from the Troubles and build your own interpretation with Professor Pi at aitutors.me.