Fianna Fáil in the context of "Dáil vote for Taoiseach"

Irish nationalism is a nationalist political movement which, in its broadest sense, asserts that the people of Ireland should govern Ireland as a sovereign state. Since the mid-19th century, Irish nationalism has largely taken the form of cultural nationalism based on the principles of national self-determination and popular sovereignty. Irish nationalists during the 18th, 19th, and 20th centuries such as the United Irishmen in the 1790s, Young Irelanders in the 1840s, the Fenian Brotherhood during the 1880s, Fianna Fáil in the 1920s, and Sinn Féin styled themselves in various ways after French left-wing radicalism and republicanism. Irish nationalism celebrates the culture of Ireland, especially the Irish language, literature, music, and sports. It grew more potent during the period in which all of Ireland was part of the United Kingdom, which led to most of the island gaining independence from the UK in 1922.

Irish nationalists believe that foreign English and later British rule in Ireland from the 1169 English Norman Invasion of Ireland onwards has been detrimental to Irish interests. At the time of the partition of Ireland most of the island was Roman Catholic and largely indigenous, while a sizeable portion of the country, particularly in the north, was Protestant and chiefly descended from people of Great Britain who colonised the land as settlers during the reign of King James I in 1609. Partition was along these ethno-religious lines, with most of Ireland gaining independence, while six northern counties remained part of the United Kingdom. Irish nationalists support Irish reunification.

United Ireland (Irish: Éire Aontaithe), also referred to as Irish reunification or a New Ireland, is the proposition that all of Ireland should be a single sovereign state. At present, the island is divided politically: the sovereign state of Ireland (legally described also as the Republic of Ireland) has jurisdiction over the majority of Ireland, while Northern Ireland, which lies entirely within (but consists of only 6 of 9 counties of) the Irish province of Ulster, is part of the United Kingdom. Achieving a united Ireland is a central tenet of Irish nationalism and Republicanism, particularly of both mainstream and dissident republican political and paramilitary organisations. Unionists support Northern Ireland remaining part of the United Kingdom and oppose Irish unification.

Ireland has been partitioned since May 1921, when the Government of Ireland Act 1920 came into effect, creating two separate jurisdictions—Southern Ireland and Northern Ireland—within the United Kingdom. Southern Ireland never fully functioned and was soon replaced by the Irish Free State in 1922, which became independent, while Northern Ireland opted to remain part of the UK. The Anglo-Irish Treaty, which led to the establishment in December 1922 of a dominion called the Irish Free State, recognised partition, but this was opposed by anti-Treaty republicans. When the anti-Treaty Fianna Fáil party came to power in the 1930s, it adopted a new constitution which claimed sovereignty over the entire island. The Irish Republican Army (IRA) had a united Ireland as its goal during the conflict with British security forces and loyalist paramilitaries from the 1960s to the 1990s known as The Troubles. The Good Friday Agreement signed in 1998, which ended the conflict, acknowledged the legitimacy of the desire for a united Ireland, while declaring that it could be achieved only with the consent of a majority of the people of both jurisdictions on the island, and providing a mechanism for ascertaining this in certain circumstances.

Sinn Féin (/ʃɪn ˈfeɪn/ shin FAYN; Irish: [ˌʃɪn̠ʲ ˈfʲeːnʲ] ; lit. '[We] Ourselves') is an Irish republican and democratic socialist political party active in both the Republic of Ireland and Northern Ireland.

The original Sinn Féin organisation was founded in 1905 by Arthur Griffith. Its members founded the revolutionary Irish Republic and its parliament, the First Dáil, and many of them were active in the Irish War of Independence, during which the party was associated with the Irish Republican Army (1919–1922). The party split before the Irish Civil War and again in its aftermath, giving rise to the two traditionally dominant parties of Irish politics: Fianna Fáil, and Cumann na nGaedheal (which merged with smaller groups to form Fine Gael). For several decades the remaining Sinn Féin organisation was small and often without parliamentary representation. It continued its association with the Irish Republican Army. Another split in 1970 at the start of the Troubles led to the modern Sinn Féin party, with the other faction eventually becoming the Workers' Party.

Éamon de Valera (/ˈeɪmən ˌdɛvəˈlɛərə, -ˈlɪər-/ AY-mən DEH-və-LAIR-ə, -⁠LEER-; Irish: [ˈeːmˠən̪ˠ dʲɛ ˈwalʲəɾʲə]; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the president of Ireland from 1959 to 1973, and three terms as prime minister (titled as President of the Executive Council of the Irish Free State from 1932 to 1937 and as Taoiseach from 1937 to 1948, 1951 to 1954, and 1957 to 1959). He had a leading role in introducing the Constitution of Ireland in 1937, and was a dominant figure in Irish political circles from the early 1930s to the late 1960s, when he served terms as both the head of government and head of state.

De Valera was a commandant of the Irish Volunteers (Third Battalion) at Boland's Mill during the 1916 Easter Rising. He was arrested and sentenced to death, but released for a variety of reasons, including his American citizenship and the public response to the British execution of Rising leaders. He returned to Ireland after being jailed in England and became one of the leading political figures of the War of Independence. After the signing of the Anglo-Irish Treaty, de Valera served as the political leader of Anti-Treaty Sinn Féin until 1926, when he, along with many supporters, left the party to set up Fianna Fáil, a new political party which abandoned the policy of abstentionism from Dáil Éireann in favour of republicanising the Irish Free State from within.

The 2011 Irish general election took place on 25 February 2011 to elect the 166 members of Dáil Éireann, the lower house of Ireland's parliament, the Oireachtas. Held amid a sharp economic downturn and the eurozone crisis, the election swept Fianna Fáil from power on one of the largest swings in Europe since 1945 and resulted in a Fine Gael–Labour Party coalition with a record majority.

Traditionally Ireland's dominant party and in government since 1997, Fianna Fáil's support declined after the near-collapse of the banking sector in 2008. With the economy in a deep recession, Taoiseach Brian Cowen's Fianna Fáil–Green Party coalition passed four austerity budgets and became highly unpopular. The government collapsed following its application for an international bailout in late 2010, which saw the so-called Troika take control of state fiscal policy. Cowen resigned as Fianna Fáil leader days before the Dáil was dissolved.

The Constitution (Removal of Oath) Act 1933 (act no. 6 of 1933, previously bill no. 2 of 1932)was an Act of the Oireachtas of the Irish Free State amending the Constitution of the Irish Free State and the Constitution of the Irish Free State (Saorstát Eireann) Act 1922. It removed the Oath of Allegiance required of members of the Oireachtas (legislature) and of non-Oireachtas extern ministers.

The oath, pledging allegiance to the Constitution and fidelity to George V as King of Ireland, was required by the Anglo-Irish Treaty signed in 1921, and had been the symbolic focus of Irish republican opposition to the Treaty in the 1922–23 Irish Civil War. When Fianna Fáil was founded in 1926 by veterans of the losing anti-Treaty side in the Civil War, abolishing the oath was a core aim. It was a main item in the manifesto for its successful 1932 general election campaign, after which it formed a minority government whose first action was to introduce the Constitution (Removal of Oath) Bill 1932. Seanad Éireann had more ex-unionists and others conciliatory towards the United Kingdom, and voted to reject the bill unless the Treaty could be amended by agreement. After the 1933 general election, the Fianna Fáil majority government was able to override the Seanad and enact the law.