KS3 & GCSE Humanities · Key Stage 3

The Good Friday Agreement 1998: Peace in Northern Ireland

What was the Good Friday Agreement of 1998? How it ended the Troubles in Northern Ireland, who signed it, its key provisions, and its lasting significance for peace.

Duke Harewood — author of AI Tutors for Key Stage 3Updated 5 min read

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Short answer

The Good Friday Agreement, signed on 10 April 1998, was a landmark peace deal that brought an end to most of the political violence in Northern Ireland after nearly three decades of conflict known as the Troubles. It established a power-sharing government and was approved by 71% of voters in a subsequent referendum, making it one of the most significant achievements in modern British and Irish political history.

At a glance

Key stage
Key Stage 3
Subject
History
Type
Explainer
For
Students
Read time
5 min
Last updated
14 October 2026

Where this fits

  1. Key Stage 3Years 7–9This article
  2. GCSEYears 10–11
This article is aimed at Key Stage 3 (Years 7–9), the stage before GCSE (Years 10–11).

What were the Troubles?

The Troubles was a period of political and sectarian violence in Northern Ireland lasting roughly from 1968 to 1998. At its heart was a conflict between two communities:

  • Unionists and Loyalists (mostly Protestant) who wanted Northern Ireland to remain part of the United Kingdom
  • Nationalists and Republicans (mostly Catholic) who wanted Northern Ireland to join a united Ireland

The violence claimed over 3,500 lives. The main paramilitary groups were the Provisional Irish Republican Army (IRA) on the republican side and the Ulster Volunteer Force (UVF) and Ulster Defence Association (UDA) on the loyalist side. British Army troops were deployed to Northern Ireland from 1969 onwards, and the security forces also killed civilians — most notoriously on Bloody Sunday (January 1972), when paratroopers shot dead 14 unarmed civil rights marchers in Derry.

Who were the key parties in the negotiations?

Reaching the Agreement required years of secret and public negotiations involving multiple parties. The main players in the final negotiations at Stormont in early 1998 were:

Party/Government Position Leader
Ulster Unionist Party (UUP) Unionist, pro-Agreement David Trimble
Social Democratic and Labour Party (SDLP) Nationalist, pro-Agreement John Hume
Sinn Féin Republican, linked to IRA Gerry Adams
UK Government Facilitated, pro-Agreement Tony Blair (PM)
Irish Government Facilitated, pro-Agreement Bertie Ahern (Taoiseach)
Alliance Party Cross-community Lord Alderdice
US Senator George Mitchell Independent chair —

Two major parties — the Democratic Unionist Party (DUP) under Ian Paisley and the Ulster Democratic Party — refused to sign. The DUP would only enter power-sharing arrangements nearly a decade later, in 2007.

What were the key provisions of the Agreement?

The Agreement addressed multiple dimensions of the conflict simultaneously:

Provision Detail
Power-sharing Assembly Devolved government at Stormont with seats allocated proportionally; key decisions require cross-community support
North–South Ministerial Council Cross-border cooperation between Northern Ireland and the Republic of Ireland on agreed areas
British–Irish Council New body linking governments of UK, Ireland, and devolved administrations
Decommissioning Paramilitary groups to put weapons beyond use; Independent International Commission on Decommissioning established
Prisoner releases Paramilitary prisoners to be released within two years if their organisations maintained ceasefires
Policing reform Independent commission to reform the Royal Ulster Constabulary (RUC), which resulted in the Police Service of Northern Ireland (PSNI)
Constitutional change Republic of Ireland removed its territorial claim to Northern Ireland from its constitution

What was the referendum result?

On 22 May 1998, referendums were held simultaneously in Northern Ireland and the Republic of Ireland:

  • Northern Ireland: 71.1% voted Yes, 28.9% No on a turnout of 81%
  • Republic of Ireland: 94.4% voted Yes to amending the constitution

The result in Northern Ireland was significant because it showed majority support from both communities, though unionist support was narrower — roughly 55% of unionists voted Yes, while over 95% of nationalists did so.

What was the significance of the Agreement for peace?

The Agreement did not immediately end all violence, but it fundamentally changed the political landscape:

  • Formal IRA decommissioning was completed in 2005, verified by the Independent International Commission
  • Loyalist paramilitaries also largely decommissioned
  • Murders and bombings reduced dramatically, though dissident republican groups continued attacks
  • Power-sharing government was established at Stormont, though it has been suspended at various points due to political disagreements
  • Cross-border cooperation on policing, trade, and health improved significantly

John Hume and David Trimble were jointly awarded the Nobel Peace Prize in 1998 for their roles in the Agreement.

Why was the Good Friday Agreement so difficult to achieve?

The negotiations nearly collapsed multiple times. The key challenges were:

  • Deep mistrust between unionist and republican parties who had been in violent conflict for decades
  • The question of whether Sinn Féin could participate before IRA decommissioning — eventually resolved by including decommissioning as a condition of ongoing participation
  • Unionist fears that power sharing would be a step towards a united Ireland
  • Republican concerns that accepting a Northern Irish assembly would mean accepting partition permanently
  • The prisoner releases, which were deeply painful for victims of paramilitary violence

Senator George Mitchell's patient chairmanship, and the personal commitment of Tony Blair and Bertie Ahern, were credited with holding the talks together through the final week's near-collapse.

Frequently asked questions

What does "power sharing" mean in the context of Northern Ireland?

Power sharing means that government is structured so that both communities must participate and agree on major decisions. In Northern Ireland's Assembly, members must designate themselves as "Unionist," "Nationalist," or "Other," and key votes require a majority of both Unionists and Nationalists. This prevents either community from governing alone and means decisions have cross-community legitimacy.

Why was the Agreement called the "Good Friday" Agreement?

It was signed on Good Friday, 10 April 1998, and this date gave it its popular name. It is also officially known as the Belfast Agreement. The choice of date was not deliberate symbolism — the negotiators had set a deadline and simply happened to finish on that day.

What happened to the Agreement after Brexit?

Brexit created significant tensions because Northern Ireland shares a land border with the Republic of Ireland, which is an EU member. The Good Friday Agreement was premised on an open border between North and South. Resolving this tension required the Northern Ireland Protocol (later revised as the Windsor Framework in 2023), which placed some trade checks in the Irish Sea. This remains a source of political controversy in Northern Ireland, particularly for unionists who feel it has weakened Northern Ireland's place in the UK.

Did the Agreement fully end the Troubles?

The Agreement ended most violence, but not all. Dissident republican groups, particularly the "Real IRA" and the "Continuity IRA," rejected the Agreement and continued attacks, including the Omagh bombing in August 1998 which killed 29 people and remains the single deadliest attack of the Troubles. However, large-scale paramilitary campaigns ended, and Northern Ireland has been broadly peaceful since 1998, though sectarian tensions and occasional violence continue.

Let Professor Mercator guide you through the Good Friday Agreement — visit aitutors.me.

Key terms

  • Unionists and Loyalists
  • Nationalists and Republicans
  • Northern Ireland
  • Republic of Ireland

Sources