Northern Ireland have the story of the conflict between the Catholic and Protestant ,so it is a slate of war Boyne (Battle of Boyne) in 1690 by King James defeat against Protestant. Services in Ireland During the next year.. 1800 has got off Union Act (Act of Union), a law issued by the Parliament of Ireland. The main idea of the EU as well as between Ireland and the UK on 21 December 1948, the Irish independence from Britain. And established the Republic of Ireland consists of 26 independent states and six autonomous region is still under the rule of the United Kingdom, which are known as the Northern Ireland region at present, however. 'Frustration Ireland' (The Troubles), and the violence continues almost 30 years later, in 1990, began the trend ushering an era of peace. The treaty was signed in Belfast or Good Friday Agreement on April 10, 1998, a summary of the cessation of violence that took place and ended the call of the peace process in Northern Ireland (Irish. Republican Army)