When Boris Johnson refused to sanction a second Scottish referendum in January, the Scottish nationalists raised the prospect of a trial. Before the agreement, the Irish Constitution maintained a territorial right to Northern Ireland. The new provisions adopted by referendum provide that if the will of the Irish nation is to unite the island, these changes can only be made with the agreement of a democratically expressed majority of the people in the two jurisdictions of the island. Changes have also been made to reflect the citizenship rights of all Citizens Born in Northern Ireland, as outlined in the agreement. The Good Friday Agreement (GFA) or the Belfast Agreement (irish: Comhaonté Aoine an Chéasta or Comhaonté Bhéal Feirste; Ulster-Scots: Guid Friday Greeance or Bilfawst Greeance) is a couple of agreements signed on 10 April 1998 that put an end to most of the violence of the Troubles, a political conflict in Northern Ireland that had erupted since the late 1960s. This was an important development in the Northern Ireland peace process in the 1990s. Northern Ireland`s current system of de-decentralized government is based on the agreement. The agreement also created a number of institutions between Northern Ireland and the Republic of Ireland, as well as between the Republic of Ireland and the United Kingdom. The British government is virtually out of the game and neither parliament nor the British people have, as part of this agreement, the legal right to obstruct the achievement of Irish unity if it had the consent of the people of the North and The South… Our nation is and will remain a nation of 32 circles. Antrim and Down are and will remain a part of Ireland, just like any southern county.  Sinn Féin supports a border survey; In February 2019, party chair Mary Lou McDonald said there would be a “democratic imperative” to hold a referendum on reunification if there was no agreement.
The other nationalist party, the SDLP, warned against holding a vote before having plans on how a unified Ireland works. The agreement contains a complex set of provisions in a number of areas, including: as the debate on referendums and border elections has intensified in the United Kingdom, some have seen the courts as potential arbiters. The multi-party agreement required the parties to “use all the influences they might have” to obtain the dismantling of all paramilitary weapons within two years of the adoption of the agreement by referendums. The standardization process has forced the British government to reduce the number and role of its armed forces in Northern Ireland “to a level compatible with a normal peaceful society.” These include the elimination of security measures and the abolition of special emergency powers in Northern Ireland. The Irish government has pledged to conduct a “thorough review” of its violations of national law. The vague wording of some so-called “constructive ambiguities” helped ensure the adoption of the agreement and delayed debate on some of the most controversial issues.