Introduction: The Good Friday Agreement and a Fragile Peace

The Good Friday Agreement (also known as the Belfast Agreement), signed on 10 April 1998, is widely regarded as one of the most successful peace accords of the late twentieth century. It ended three decades of sectarian violence known as the Troubles, which claimed more than 3,500 lives and left deep psychological and physical scars across Northern Ireland. The agreement created a complex power-sharing government, a cross-border ministerial council, and mechanisms for North-South and East-West cooperation. It also affirmed Northern Ireland’s constitutional position within the United Kingdom while recognising the legitimacy of a united Ireland if a majority votes for it in a future border poll. Yet, despite its historic achievement, the Good Friday Agreement has never been fully implemented in spirit, and in recent years, a series of political, economic, and external shocks have tested its resilience. This article examines the most pressing challenges facing the agreement in contemporary Northern Ireland, from the fallout of Brexit to the stubborn persistence of paramilitary activity and social division. It also explores the efforts underway to shore up the peace and asks what the future holds for this foundational document.

Political Disagreements and the Erosion of Cross-Community Trust

Power-Sharing Paralysis

At the heart of the Good Friday Agreement is the principle of power-sharing between unionist and nationalist parties. The Northern Ireland Executive, led by a First Minister and deputy First Minister (one from each community), requires cross-community consent on major decisions. Over the past two decades, this mechanism has repeatedly stalled. The executive collapsed in 2002–2007 over disputes about IRA decommissioning, again in 2017–2020 over a renewable energy scandal, and most recently from February 2022 to February 2024, largely due to the Democratic Unionist Party’s (DUP) boycott over the Northern Ireland Protocol. These prolonged suspensions have led to political vacuum, delayed policy decisions, and deepened public cynicism about the devolved institutions. When the executive is not sitting, civil servants run day-to-day services, but long-term strategic decisions—such as health service reform or education funding—remain in limbo. This instability weakens the perception that the Good Friday Agreement can deliver effective governance.

The Limits of Mandatory Coalition

The mandatory coalition model, while designed to ensure both communities are represented, has created a political culture of mutual veto. Parties are forced to work together whether they share any policy vision or not. In practice, this has led to a lowest-common-denominator approach, with major reforms stalling because one side threatens to collapse the executive. Critics argue that this model, rather than fostering reconciliation, has institutionalised division. The two largest parties—the DUP and Sinn Féin—rarely agree on foundational issues such as the legitimacy of the state or the future of the border. The result is a government that is often focused on managing tensions rather than advancing shared prosperity.

Generational Change and Political Polarisation

Younger voters in Northern Ireland increasingly identify as neither unionist nor nationalist. However, the structure of the Good Friday Agreement—with its requirement for designation as unionist, nationalist, or “other”—reinforces a binary political system. This exclusionary dynamic frustrates many who want an alternative to the traditional ethno-nationalist divide. Meanwhile, recent political campaigns have become more polarised, with social media accelerating the spread of divisive rhetoric. The centrist Alliance Party has grown, but without the ability to design a system that truly represents non-aligned voters, political disagreements remain entrenched.

Brexit and the Dismantling of the Agreement’s Settlement

The Northern Ireland Protocol: A Border in the Irish Sea

Brexit fundamentally altered the context in which the Good Friday Agreement operates. When the United Kingdom left the European Union in 2020, the UK and EU agreed on a special arrangement for Northern Ireland to avoid a hard border on the island of Ireland. The Northern Ireland Protocol effectively kept Northern Ireland in the EU’s single market for goods, creating a customs and regulatory border between Great Britain and Northern Ireland. This arrangement, intended to protect the Good Friday Agreement, paradoxically became its greatest source of strain. Unionists, particularly the DUP, argued that the protocol undermined Northern Ireland’s place in the UK, violated the principle of consent enshrined in the agreement (since unionists had not consented to the new trade border), and destabilised the 1998 settlement. Loyalist protests, traffic blockades, and a spike in anti-immigrant rhetoric followed. Political parties on the unionist side demanded the protocol’s removal, while nationalists and the EU insisted it was the only practical way to avoid a return to a hard border.

The Windsor Framework and Its Aftermath

In February 2023, the UK and EU agreed on the Windsor Framework, a revised set of arrangements to ease trade friction and give the Northern Ireland Assembly a greater voice—the so-called “Stormont Brake.” While the Framework was welcomed by most business groups and by the Irish and British governments, unionist scepticism remained. The DUP refused to re-enter the executive until further concessions were secured, and only in February 2024 did the party agree to restore power-sharing after the UK government passed legislation giving Northern Ireland greater legal certainty over its constitutional status. Yet the underlying political tension remains. The Windsor Framework has not resolved the fundamental question: can Northern Ireland remain fully in the UK while also enjoying privileged access to the EU market? For many unionists, the answer is no, and the issue continues to erode trust in the Good Friday Agreement as a stable guarantor of their identity.

The Broader Brexit Fallout: Identity and Polarisation

Brexit also intensified identity politics. The 2016 referendum saw a clear majority in Northern Ireland vote to remain in the EU, but the UK-wide result to leave imposed a policy the region had not chosen. This breached the principle of parity of esteem—the idea that neither community should be forced into a change it opposes—a pillar of the Good Friday Agreement. Nationalists and republicans interpreted Brexit as evidence that the Union with Britain was unsustainable, fueling calls for a border poll. Conversely, unionists saw the protocol as a betrayal of their Britishness. The resulting standoff has made it harder for the two communities to see the agreement as a shared success story.

Enduring Socio-Economic Divisions and Inequality

The Legacy of Deprivation

The Good Friday Agreement promised peace dividends—economic growth, investment, and social inclusion. While Northern Ireland has seen significant inward investment and a reduction in unemployment, deep inequalities persist. Many working-class communities, particularly in Belfast and Londonderry, remain segregated along sectarian lines. These areas often suffer from high levels of poverty, poor health outcomes, and limited educational attainment. The peace walls—physical barriers separating Catholic and Protestant neighbourhoods—still number over 100, and many have actually been extended since 1998. Apart from being a physical symbol of division, they reinforce social and economic isolation. Young people growing up in these areas have limited contact with the “other” community, perpetuating cycles of mistrust and resentment.

Educational and Housing Segregation

Northern Ireland’s education system is largely segregated along religious lines. Over 90% of children attend either a Catholic-maintained school or a state (controlled) school that is overwhelmingly Protestant. Integrated schools, while growing in number, still educate only about 8% of pupils. This separation means that children from different backgrounds rarely learn together, missing a vital opportunity to build understanding from an early age. Housing in many areas remains de facto segregated, with housing allocation often influenced by community background. The Homelessness and housing waiting lists are disproportionately long in areas with higher sectarian tensions. These structural divisions undermine the social cohesion that the Good Friday Agreement sought to foster.

The Mental Health and Trauma Crisis

Decades of the Troubles left an estimated 500,000 people in Northern Ireland with long-term physical or mental health conditions directly related to the conflict. Post-traumatic stress disorder, depression, and addiction are widespread. The health service, already under strain, struggles to meet demand. The absence of a comprehensive legacy mechanism—a topic of intense political disagreement—means many victims and survivors feel their suffering has been ignored. The failure to address this trauma fuels grievances that can spill over into political discontent, making it harder to sustain the peace.

The Lingering Shadow of Paramilitary Activity

Continued Violent Dissidence

Though the major paramilitary groups—the IRA, UVF, and UDA—declared ceasefires and decommissioned most weapons, dissident republican factions such as the New IRA and Óglaigh na hÉireann remain active. These groups continue to carry out shootings, bombings, and drug-related intimidation. In 2019, journalist Lyra McKee was killed by a New IRA gunman during riots in Derry. Paramilitary-style attacks — “punishment beatings” and expulsions from communities—still occur, often with police forced to operate in a climate of intimidation. Loyalist paramilitaries also retain a strong presence, engaging in organised crime, drug dealing, and internal feuds. Though the number of deaths is much lower than during the Troubles, the violence perpetuates a climate of fear and undermines the rule of law, particularly in working-class estates.

The Legacy of “Criminality” and Community Control

Paramilitary groups no longer fight a war against the state, but they exert control over neighbourhoods through drug rackets, loan-sharking, and “community policing.” In some areas, a parallel justice system operates where paramilitaries adjudicate disputes and mete out punishments. This undermines the legitimacy of the police and the institutions created by the Good Friday Agreement. The Northern Ireland Policing Board has repeatedly acknowledged that paramilitary intimidation makes it harder to recruit officers and maintain public confidence. For the peace process to be complete, these groups must be fully dismantled—a goal that proves elusive when many communities still tacitly tolerate their presence out of fear or a sense of protection.

The Failure of Legacy Truth and Justice Mechanisms

A central promise of the Good Friday Agreement was to address the legacy of the Troubles through a “comprehensive” process of truth recovery, justice, and reconciliation. For years, efforts to create a dedicated legacy body have been stuck in partisan deadlock. The UK government’s controversial Legacy Act (2023), which grants immunity to former soldiers and paramilitary members who cooperate with an information recovery body, has been condemned by all major parties in Northern Ireland, the Irish government, and the Council of Europe. Victims’ groups argue that the act prioritises state interests over accountability. Without a legitimate truth-telling mechanism, the wounds of the past remain raw, and paramilitary narratives—particularly those that glorify violence—persist, especially among younger generations who view these groups as defenders of their community.

Efforts to Strengthen the Good Friday Agreement: Resilience and Renewal

Political Engagement and the Stability of the Institutions

The restoration of the executive in February 2024 after nearly two years of paralysis was a crucial step. The new Programme for Government includes cross-community commitments to tackle paramilitarism, improve mental health services, and advance integrated education. The UK and Irish governments have also committed to regular intergovernmental conferences, a mechanism created by the agreement but rarely used in recent years. Sustained dialogue at the highest political levels—including summit meetings between the Prime Minister and Taoiseach—has helped maintain momentum. But the institutions need to prove they can deliver tangible improvements to everyday life to rebuild public trust.

Civil Society and Community Initiatives

Numerous grassroots organisations work to bridge divides. The Corrymeela Community runs peacebuilding retreats for young people from different backgrounds. The Ulster University’s Transitional Justice Institute researches and promotes inclusive approaches to legacy. Local councils, through community relations programmes, fund cross-community events and shared spaces. Organisations like PeacePlayers use sport to bring children together. These efforts, though small in scale compared to the challenges, build the interpersonal trust that formal politics cannot. Civil society also acts as a watchdog, holding politicians accountable and providing alternative visions for the future.

Economic Regeneration as a Peacebuilding Tool

The Good Friday Agreement’s promise of economic prosperity remains central to its legitimacy. The Executive Office’s “Together: Building a United Community” strategy includes a focus on creating shared public spaces, mixed-housing schemes, and employment initiatives in deprived areas. The UK government’s Levelling Up Fund has allocated significant money to Northern Ireland, with some projects explicitly designed to tackle division—such as the regeneration of the former military site at Ebrington Barracks in Derry into a shared civic space. International investment, particularly from US firms like Allstate and Citi, has created high-quality jobs that attract a diverse workforce. Economic integration can, over time, reduce the salience of political disagreements, though benefits must reach the most marginalised communities to be effective.

The International Framework and the Guarantor Role

The Good Friday Agreement is an international treaty, guaranteed by the British and Irish governments and overseen by the US, with support from the EU. The British-Irish Intergovernmental Conference and the North/South Ministerial Council provide institutional mechanisms for cooperation. The United States Special Envoy to Northern Ireland has been an important diplomatic lever, particularly during the Brexit negotiations, where American pressure helped shape the protocol. The EU’s financial contributions—through the PEACE PLUS programme, which will invest over €1 billion in peacebuilding until 2027—help fund reconciliation projects, cross-border cooperation, and shared economic development. Maintaining this international engagement is essential, especially as attention shifts to other global crises.

Addressing the Legacy of Violence

Any lasting peace must grapple honestly with the past. Civil society groups have proposed alternative models for truth-recovery that are not reliant on prosecutions but on public acknowledgment of harm. The Healing Through Remembering project, for example, has proposed a “Day of Reflection” and a permanent public record of all conflict-related deaths. The Commission for Victims and Survivors continues to call for a victim-centred approach. While the UK’s Legacy Act remains deeply controversial, there is growing consensus across the political spectrum that a fresh, legitimate process is needed—one that respects the Good Friday Agreement’s commitment to the “advancement of justice, healing and reconciliation.” Without such a mechanism, the grievances of the past will continue to poison the present.

Conclusion: The Ongoing Work of Peace

The Good Friday Agreement was never a final destination; it was a framework for a journey. More than twenty-five years later, the journey remains unfinished. Political breakdowns, Brexit, persistent inequality, paramilitary activity, and unresolved legacies all test the agreement’s capacity to deliver stability. Yet the agreement also contains the tools for its own renewal—the institutions, the cross-border bodies, the commitment to human rights, and the willingness to compromise. The fact that power-sharing was restored after two years of crisis shows that there is still enough political will to keep the process alive. The challenge for contemporary Northern Ireland is not to abandon the Good Friday Agreement but to deepen its implementation: to tackle the root causes of division, to heal the trauma of the past, and to build a society where peace is more than the absence of war. For students, teachers, and engaged citizens, understanding these challenges is the first step toward supporting the difficult but essential work of maintaining peace. The future of Northern Ireland depends on whether the next generation can turn the agreement’s promise into lived reality.

Further Reading