The Anglo-Irish Agreement was a 1985 treaty between the United Kingdom and the Republic of Ireland which aimed to help bring an end to the Troubles in Northern Ireland. The treaty gave the Irish government an advisory role in Northern Ireland's government while confirming that there would be no change in the constitutional position of Northern Ireland unless a majority of its citizens agreed to join the Republic. It also set out conditions for the establishment of a devolved consensus government in the region.
The Agreement was signed on 15 November 1985, at Hillsborough Castle, by British Prime Minister Margaret Thatcher and Irish Taoiseach (prime minister) Garret FitzGerald.
During her first term as prime minister, Thatcher had unsuccessful talks with Irish taoiseachs Jack Lynch and Charles Haughey on solving the conflict in Northern Ireland. In December 1980 Thatcher and Haughey met in Dublin, with the subsequent communiqué calling for joint studies of "possible new institutional links" between Britain, Northern Ireland, and the Republic of Ireland. Although this resulted in the founding of the Anglo-Irish Intergovernmental Council in 1981, Anglo-Irish relations had by this time deteriorated due to the Irish hunger strike and so this body was neglected. Haughey resumed power shortly afterwards and took Argentina's side during the Falklands War, leading to the meeting scheduled for July 1982 to be cancelled. However, the British Northern Irish Secretary, Jim Prior, proposed "rolling devolution": a step by step approach whereby local government was devolved to an assembly elected by proportional representation. This was boycotted by the nationalist community and the plan was dead by June 1983.
The Provisional Irish Republican Army's (IRA) campaign on the British mainland was ongoing, with the bombing of Chelsea Barracks in October 1981, the Hyde Park and Regent's Park bombings in July 1982 and the Harrods bombings in December 1983. Thatcher herself was the target in the Brighton hotel bombing of October 1984. British military intelligence informed Thatcher that she could not take the IRA head on and the likelihood of never-ending violence persuaded her to seek a political solution to the Troubles. The Anglo-Irish Agreement's origins lay in the behind-the-scenes negotiations between the British and Irish foreign offices, co-ordinated by the Cabinet Secretary, Robert Armstrong, and the secretary to the Irish government, Dermot Nally.
The New Ireland Forum had been founded (with the backing of then-Taoiseach Garret FitzGerald) in May 1983 by John Hume in an attempt to undercut support for the IRA by bringing together constitutional nationalist parties from both sides of the border. In June 1983 Thatcher and Fitzgerald met again and revived the Anglo-Irish Council, which met sixteen times between November 1983 and March 1985. The report of the New Ireland Forum was published in May and suggested three possible solutions: a federal united Ireland, a confederal united Ireland or joint sovereignty. Fitzgerald hoped that Thatcher might be persuaded of the third option but at the press conference after their meeting Thatcher publicly proclaimed that all three options were "out". Thatcher's intransigence persuaded the American President, Ronald Reagan, to intervene.
The most powerful pressure for the Agreement came from the United States, where the Irish-American lobby was second only to the Israel lobby in influence. Led by the Speaker of the House of Representatives, Tip O'Neill, and Senators Edward Kennedy and Daniel Moynihan, the Irish lobby regularly denounced what they considered British colonialism and human rights violations in Northern Ireland. Reagan, who was also Irish-American and visited Ireland in June 1984, increasingly encouraged Thatcher to make progress on Anglo-Irish talks. 45 Senators and Congressmen (including O'Neill, Kennedy and Moynihan) wrote to Reagan criticising Thatcher's rejection of the Forum's report. They also pushed him to pressure Thatcher into reconsidering her stance at the upcoming meeting at Camp David in December 1984. Reagan duly discussed Northern Ireland with Thatcher at their meeting, telling her that "making progress is important" and that "there is great Congressional interest in the matter", adding that O'Neill wanted her to be "reasonable and forthcoming". Afterwards, Reagan assured O'Neill that he had emphasised the need for progress.
Sean Donlon, the Secretary General of the Department of Foreign Affairs, later claimed that "the intervention by Reagan was vital, and it was made possible by Tip". Michael Lillis, the Deputy Secretary General of the Department of Foreign Affairs from 1983 to 1985, similarly claimed that "O'Neill was very active and effective in mobilizing the President. And there is no doubt whatsoever that Reagan's regular references to this in his interaction with Thatcher helped us in a major way".
By January 1985, Thatcher was persuaded that progress must be made on the issue. Her primary aim was security but realised that in order for help in this area she would need to concede in other areas, such as grievances over policing and the courts. She also hoped that this would help reconcile the Catholic population to the United Kingdom. She invited John Hume to Chequers on 16 January to discuss Northern Ireland. She now accepted that an "Irish dimension" was necessary in return for the Irish government's acceptance that Northern Ireland would remain a member of the United Kingdom so long as it had majority support. In April a four-member Cabinet committee had been informed of the negotiations; in October the entire Cabinet was informed. Thatcher and Fitzgerald met again in May at a European summit in which they discussed what became the Anglo-Irish Agreement.
Anglo-Irish Intergovernmental Conference
The agreement established the Anglo-Irish Intergovernmental Conference, made up of officials from the British and Irish governments. This body was concerned with political, legal and security matters in Northern Ireland, as well as "the promotion of cross-border co-operation". It had a consultative role only – no powers to make decisions or change laws were given to it. The Conference would only have power to make proposals "insofar as those matters are not the responsibility of a devolved administration in Northern Ireland". This provision was intended to encourage the unionists (who opposed Irish government involvement in Northern Ireland through the Conference) into power-sharing devolved government. The Maryfield Secretariat was the conference's permanent secretariat, including officials from Ireland's Department of Foreign Affairs, based in the Belfast suburb of Maryfield. The presence of civil servants from the Republic particularly incensed unionists. The Maryfield offices closed in December 1998 after the British–Irish Intergovernmental Conference superseded the Anglo-Irish Intergovernmental Conference.
In the communiqué accompanying the agreement, the UK agreed that all British Army patrols in Northern Ireland would have a civilian Royal Ulster Constabulary escort, save in the most exceptional circumstances. The Irish government made thousands of protests at violations of this undertaking by 1997.
The British House of Commons voted for a motion to approve the Agreement by a majority of 426 (473 for and 47 against, the biggest majority during Thatcher's premiership). Most of the Conservative members voted for it, although there were some unionists in the party who opposed it, as well as some members of the Labour Party and the Liberal-SDP Alliance. Of the main parties in Northern Ireland, only the nationalist Social Democratic and Labour Party (SDLP) and the cross community Alliance Party supported the agreement, although the Alliance Party did not have any seats at Westminster.
The Agreement was approved by Dáil Éireann, by 88 votes to 75, and by Seanad Éireann by 37 votes to 16. The Irish nationalist Fianna Fáil, at the time the main opposition party in Ireland, also rejected the Agreement. The Fianna Fáil leader, Charles Haughey, claimed the Agreement was in conflict with Articles 2 and 3 of the Constitution of Ireland because it officially recognised British jurisdiction in Northern Ireland. It was also opposed by the Independent Republican TDs Neil Blaney and Tony Gregory, with Blaney describing the agreement as "a con job". Despite this opposition, all the other main parties in the Republic supported the Agreement, and it was ratified by the Oireachtas.