Partition of Ireland


The partition of Ireland was the process by which the Government of the United Kingdom of Great Britain and Ireland divided the island of Ireland into two separate polities. It took place on 3 May 1921 under the Government of Ireland Act 1920. The smaller of the two, Northern Ireland, was duly created with a devolved administration and forms part of the United Kingdom today, but the larger one, intended as a home rule jurisdiction to be known as Southern Ireland, failed to gain acceptance. The territory instead became independent and is now a sovereign state also named Ireland and additionally described as the Republic of Ireland.
The Act of 1920 was intended to create two self-governing territories within Ireland, with both remaining within the United Kingdom. It also contained provisions for co-operation between the two territories and for the eventual reunification of Ireland. However, in 1922, following the War of Independence and the Anglo-Irish Treaty, the southern and western part became the Irish Free State, while Northern Ireland exercised its option to remain in the United Kingdom.
Since partition, a key aspiration of Irish nationalists has been to bring about a reunited Ireland, with the whole island forming one independent state. This goal conflicts with that of the unionists in Northern Ireland, who want the region to remain part of the United Kingdom. The Irish and British governments agreed, under the 1998 Belfast Agreement, that the status of Northern Ireland will not change without the consent of a majority of its population. In its white paper on Brexit, the United Kingdom government reiterated its commitment to the Belfast Agreement. With regard to Northern Ireland's status, it said that the UK Government's "clearly-stated preference is to retain Northern Ireland's current constitutional position: as part of the UK, but with strong links to Ireland".

Process of partition

Overview

The idea of excluding some or all of the Ulster counties from the provisions of the Home Rule Bills had been mooted at the time of the First and Second Home Rule Bills, with Joseph Chamberlain calling for Ulster to have its own government in 1892. The unionist MP Horace Plunkett, who would later support home rule, opposed it in the 1890s because of the danger of partition. Exclusion was first considered by the British cabinet in 1912, in the context of Ulster unionist opposition to the Third Home Rule Bill, which was then in preparation. The Ulster Volunteer Force imported 25,000 rifles and three million rounds of ammunition from the German Empire in the Larne gun-running of April 1914, and there were fears that passing the Third Home Rule Bill could start a full-scale civil war in Ulster. The Curragh incident on 20 March 1914 had already led the Government to believe that the British Army could not be relied upon to carry out its orders in Ireland. The issue of partition was the main focus of discussion at the Buckingham Palace Conference held between 21 and 24 July 1914, although at the time it was believed that all nine counties of Ulster would be separated.
The Home Rule Crisis was interrupted by the outbreak of the First World War. Westminster passed the Home Rule Bill on 18 September 1914 and it immediately received Royal Assent, but its implementation was simultaneously postponed by a Suspensory Act until the war ended. At the time it was widely believed that the conflict would only last for a few months. Following the Easter Rising of April 1916, Westminster called the Irish Convention in an attempt to find a solution to its Irish Question; it sat in Dublin from July 1917 until March 1918, ending with a report, supported by nationalist and southern unionist members, calling for the establishment of an all-Ireland parliament consisting of two houses with special provisions for northern unionists. The report was, however, rejected by the Ulster unionist members, and Sinn Féin had not taken part in the proceedings, meaning the Convention was a failure. Support for Irish republicanism had risen during 1917, with Sinn Féin winning four by-elections that year. The Conscription Crisis of 1918 further reinforced the ascendancy of the republicans.
Beginning on 21 January 1919 with the Soloheadbeg ambush, through the Irish War of Independence, Irish republicans attempted to bring about the secession of Ireland from the United Kingdom of Great Britain and Ireland. Meanwhile, Irish unionists – most of whom lived in the northeast of the island – were just as determined to maintain the Union. The British Government, committed to implementing Home Rule, set up a cabinet committee under the chairmanship of southern unionist Walter Long. The Long Committee recommended the establishment of two devolved administrations, dividing the island into two territories: Northern Ireland and Southern Ireland. This was implemented as the Government of Ireland Act 1920. The Act entered into force as a on 3 May 1921 and provided that Northern Ireland would consist of the six northeastern counties, while the remainder of the island would form Southern Ireland. It was intended that each jurisdiction would be granted home rule but remain within the United Kingdom. The government of Southern Ireland never functioned: the War of Independence continued until the two sides agreed a truce in July 1921, ending with the Anglo-Irish Treaty on 6 December 1921.
A year later, on 6 December 1922, the Irish Free State became independent of the United Kingdom in accordance with the Treaty, which was given legislative effect in the United Kingdom by the Irish Free State Act 1922. The new state had the status of a dominion of the British Empire.
Under the treaty, the Government of Ireland Act continued to apply in Northern Ireland for one month after the coming into being of the Free State, and Northern Ireland would continue to remain outside the Free State if the Parliament of Northern Ireland stated its desire to do so in an address to King George V within that month. The wording of the treaty allowed the impression to be given that the Irish Free State temporarily included the whole island of Ireland, but legally the terms of the treaty applied only to the 26 counties, and the government of the Free State never had any powers—even in principle—in Northern Ireland. On 7 December 1922 the houses of the Parliament of Northern Ireland approved an address to George V, requesting that its territory not be included in the Irish Free State. This was presented to the king the following day on 8 December 1922, and then entered into effect, in accordance with the provisions of Section 12 of the Irish Free State Act 1922. Following independence, the southern state gradually severed all remaining constitutional links with the United Kingdom and the British monarchy. The Free State was renamed "Ireland" in its new constitution of 1937, which claimed jurisdiction over the entire island. In 1949 the state was declared to be a republic, under the Republic of Ireland Act.

Government of Ireland Act

The Government of Ireland Act 1920, which came into effect on 3 May 1921, provided for separate self-governing parliaments for Northern Ireland and Southern Ireland, thus partitioning Ireland. While the parliament and governmental institutions for Northern Ireland were soon established, the election in the 26 counties returned an overwhelming majority of members giving their allegiance to Dáil Éireann and supporting the republican effort in the Irish War of Independence, thus rendering "Southern Ireland" dead in the water.

Anglo-Irish Treaty

The Irish War of Independence led to the Anglo-Irish Treaty. The treaty was given legal effect in the United Kingdom through the Irish Free State Constitution Act 1922, and in Ireland by ratification by Dáil Éireann. Under the former Act, at 1pm on 6 December 1922, King George V signed a proclamation establishing the new Irish Free State.
The treaty, and the laws which implemented it, allowed Northern Ireland to opt out of the Irish Free State. Under Article 12 of the Treaty, Northern Ireland could exercise its opt-out by presenting an address to the King, requesting not to be part of the Irish Free State. Once the treaty was ratified, the Houses of Parliament of Northern Ireland had one month to exercise this opt-out during which time the provisions of the Government of Ireland Act continued to apply in Northern Ireland.

Northern Ireland opts out

The treaty "went through the motions of including Northern Ireland within the Irish Free State while offering it the provision to opt out". It was certain that Northern Ireland would exercise its opt out. The Prime Minister of Northern Ireland, Sir James Craig, speaking in the House of Commons of Northern Ireland in October 1922, said that "when the 6th of December is passed the month begins in which we will have to make the choice either to vote out or remain within the Free State." He said it was important that that choice be made as soon as possible after 6 December 1922 "in order that it may not go forth to the world that we had the slightest hesitation." On the following day, 7 December 1922, the Parliament of Northern Ireland resolved to make the following address to the King so as to opt out of the Irish Free State:
Discussion in the Parliament of the address was short. Craig left for London with the memorial embodying the address on the night boat that evening, 7 December 1922. King George V received it the following day, The Times reporting:
If the Houses of Parliament of Northern Ireland had not made such a declaration, under Article 14 of the Treaty, Northern Ireland, its Parliament and government would have continued in being but the Oireachtas would have had jurisdiction to legislate for Northern Ireland in matters not delegated to Northern Ireland under the Government of Ireland Act. This never came to pass. On 13 December 1922, Craig addressed the Parliament of Northern Ireland, informing them that the King had responded to the Parliament's address as follows:

Background

1886–1914

After the 1885 UK general election the nationalist Irish Parliamentary Party held the balance of power in the House of Commons, and entered into an alliance with the Liberals. Its leader, Charles Stewart Parnell convinced William Gladstone to introduce the First Irish Home Rule Bill in 1886. An Irish Unionist Party was immediately founded; this organised demonstrations in Belfast against the Bill, fearing that separation from Great Britain would bring industrial decline and religious persecution of Protestants by a Roman Catholic-dominated Irish government. English Conservative politician Lord Randolph Churchill proclaimed: "the Orange card is the one to play", which was later expressed in the popular slogan, "Home Rule means Rome Rule".
In many rural parts of Ireland, a "Land War" was under way, supported by many nationalists, that had led to sporadic violence. The Representation of the People Act 1884 had enlarged the popular franchise, and many property-owners, particularly unionists, were concerned that their interests would be reduced by a new Irish political class.
Although the bill was defeated, Gladstone remained undaunted, and introduced a Second Irish Home Rule Bill in 1892 that passed the Commons. Accompanied by similar mass unionist protests, Joseph Chamberlain called for a provincial government for Ulster even before the bill was rejected by the House of Lords. The seriousness of the situation was highlighted when Irish unionists throughout the island assembled at conventions in Dublin and Belfast to oppose both the Bill and the proposed partition.
When, in 1910, the Irish Party again held the balance of power in the Commons, H. H. Asquith introduced a Third Home Rule Bill in 1912. The unionists adopted the positions they had demonstrated in 1886 and 1893. With the veto of the Lords removed by the Parliament Act 1911, and the clear prospect of Home Rule passing into law, Ulster loyalists established the Ulster Volunteers in 1912 to oppose enactment of the Bill, as well as what they called its "Coercion of Ulster", and threatened to establish a Provisional Ulster Government. In 1913, the Ulster Volunteers were re-organised into an Ulster Volunteer Force.
While the Home Rule Bill was still being debated, on 20 March 1914, many British Army officers threatened to resign in what became known as the "Curragh Incident", rather than be mobilised to enforce the Act on Ulster. This meant that the British government could legislate for Home Rule but could not be sure of making it a reality on the ground. This led on to an amending Bill that would exclude Ulster for an indefinite period, and the new fear of a civil war in Ireland led to the Buckingham Palace Conference in July 1914.

1914–1922

The Home Rule Act reached the statute book with Royal Assent in September 1914 but, because of the First World War, its commencement was suspended for one year or for the duration of what was expected to be a short war. It intended to grant self-government to the entire island of Ireland as a single jurisdiction under Dublin administration, but the final version as enacted in 1914 included an amendment clause for six Ulster counties to remain under London administration for a proposed trial period of six years, yet to be finally agreed. This was belatedly conceded by John Redmond, leader of the Irish Parliamentary Party, as a compromise in order to pacify Ulster unionists and avoid civil war.
In 1917–18, the Irish Convention attempted to resolve what sort of Home Rule would follow the First World War. Unionist and nationalist politicians met in a common forum for the last time before partition. The Ulster unionists preferred to remain within the United Kingdom; the nationalist Home Rule parties and the Southern Unionists argued against partition. The growing Sinn Féin party refused to attend.
Soon after the end of the war, Sinn Féin won the overwhelming majority of the Irish parliamentary seats in the UK general election of 1918, and in January 1919 the Sinn Féin members declared unilaterally an independent Irish Republic. Unionists, however, won a majority of seats in four of the nine counties of Ulster and affirmed their continuing loyalty to the United Kingdom. Following the Paris Peace Conference, in September 1919 David Lloyd George, Prime Minister of the United Kingdom, tasked the Long Committee with implementing Britain's commitment to introduce Home Rule, which was based on the policy of Walter Long, and some findings of the Irish Convention. The result was to be two home-rule Irish jurisdictions, and in November 1920 the Government of Ireland Act 1920 was enacted. As a result of this, in April 1921 the island was partitioned into Southern and Northern Ireland.
On 5 May 1921, the Ulster Unionist leader Sir James Craig met with the President of Sinn Féin, Éamon de Valera, in secret near Dublin. Each restated his position and nothing new was agreed. On 10 May De Valera told the Dáil that the meeting "... was of no significance". In June that year, shortly before the truce that ended the Anglo-Irish War, David Lloyd George invited the Republic's President de Valera to talks in London on an equal footing with the new Prime Minister of Northern Ireland, James Craig, which de Valera attended. De Valera's policy in the ensuing negotiations was that the future of Ulster was an Irish-British matter to be resolved between two sovereign states, and that Craig should not attend. After the truce came into effect on 11 July, Lloyd George made it clear to de Valera, 'that the achievement of a republic through negotiation was impossible'.
On 20 July, Lloyd George further declared to de Valera that: In reply, de Valera wrote
The treaty as ratified in December 1921 and January 1922 allowed for a re-drawing of the mutual border by a Boundary Commission. Northern Ireland was deemed to be a part of the Irish Free State, whenever it became established, but its parliament would be allowed to vote to secede within a month, the so-called "Ulster month".

Unionist objections to Anglo-Irish Treaty

, the Prime Minister of Northern Ireland objected to aspects of the Anglo-Irish Treaty. In a letter to Austen Chamberlain dated 14 December 1921, he stated:

Nationalist objections to the Anglo-Irish Treaty

had negotiated the treaty and had it approved by the cabinet, the Dáil, and by the people in national elections. Regardless of this, it was unacceptable to Éamon de Valera, who led the Irish Civil War to stop it. Collins was primarily responsible for drafting the constitution of the new Irish Free State, based on a commitment to democracy and rule by the majority.
De Valera's minority refused to be bound by the result. Collins now became the dominant figure in Irish politics, leaving de Valera on the outside. The main dispute centred on the proposed status as a dominion for Southern Ireland, rather than as an independent all-Ireland republic, but continuing partition was a significant matter for Ulstermen like Sean MacEntee, who spoke strongly against partition or re-partition of any kind. The pro-treaty side argued that the proposed Boundary Commission would satisfy the greatest number on each side of the eventual border, and felt that the Council of Ireland would lead to unity by consent over a longer period.
De Valera had drafted his own preferred text of the treaty in December 1921, known as "Document No. 2". An "Addendum North East Ulster" indicates his acceptance of the 1920 partition for the time being, and of the rest of Treaty text as signed in regard to Northern Ireland:

Details of the partition

Debate on Ulster Month

As described above, under the treaty it was provided that Northern Ireland would have a month – the "Ulster Month" – during which its Houses of Parliament could opt out of the Irish Free State. The Treaty was ambiguous on whether the month should run from the date the Anglo-Irish Treaty was ratified or the date that the Constitution of the Irish Free State was approved and the Free State established. This question was the subject of some debate.
When the Irish Free State Bill was being debated on 21 March 1922, amendments were proposed which would have provided that the Ulster Month would run from the passing of the Irish Free State Act and not the Act that would establish the Irish Free State. Essentially, those who put down the amendments wished to bring forward the month during which Northern Ireland could exercise its right to opt out of the Irish Free State. They justified this view on the basis that if Northern Ireland could exercise its option to opt out at an earlier date, this would help to settle any state of anxiety or trouble on the new Irish border. Speaking in the House of Lords, the Marquess of Salisbury argued:
The British Government took the view that the Ulster Month should run from the date the Irish Free State was established and not beforehand, Viscount Peel for the Government remarking:
Viscount Peel continued by saying the government desired that there should be no ambiguity and would to add a proviso to the Irish Free State Bill providing that the Ulster Month should run from the passing of the Act establishing the Irish Free State. He further explained that the members of the Parliament of Southern Ireland had agreed to put that interpretation upon it. He noted that he had received from Arthur Griffith the following letter dated 20 March 1922:
Lord Birkenhead remarked in the Lords debate:
On 7 December 1922, the day after the establishment of the Irish Free State, the House of Commons of Northern Ireland heard an address by Sir James Craig to King George V requesting: "...that the powers of the Parliament and Government of the Irish Free State shall no longer extend to Northern Ireland". No division or vote was requested on the address, which was described as the Constitution Act and was then approved by the Senate of Northern Ireland.

Customs posts established

While the Irish Free State was established at the end of 1922, the Boundary Commission contemplated by the Treaty was not to meet until 1924. Things did not remain static during that gap. In April 1923, just four months after independence, the Irish Free State established customs barriers on the border. This was a significant step in consolidating the border:

Boundary Commission 1922–25

The Anglo-Irish Treaty contained a provision that would establish a boundary commission, which could adjust the border as drawn up in 1920. Most leaders in the Free State, both pro- and anti-treaty, assumed that the commission would award largely nationalist areas such as County Fermanagh, County Tyrone, South Londonderry, South Armagh and South Down, and the City of Derry to the Free State, and that the remnant of Northern Ireland would not be economically viable and would eventually opt for union with the rest of the island as well. In the event, the commission's decision was made for it by the inter-governmental agreement of 3 December 1925 that was published later that day by Stanley Baldwin. As a result, the Commission's report was not published; the detailed article explains the factors involved.
The Dáil voted to approve the agreement, by a supplementary act, on 10 December 1925 by a vote of 71 to 20.

Division of territorial waters

Background

The division of territorial waters as between Northern Ireland and the Irish Free State was to be a lingering matter of controversy for a number of years. Section 1 of the Government of Ireland Act 1920 defined the respective territories of Northern Ireland and Southern Ireland as follows:
At the time of that act, both Northern Ireland and Southern Ireland were to remain parts of the United Kingdom. Perhaps because of this, the Act did not explicitly address the position of territorial waters, although section 11 provided that neither Southern Ireland nor Northern Ireland would have any competence to make laws in respect of "lighthouses, buoys, or beacons ".
When the territory that was Southern Ireland became a separate self-governing dominion outside the United Kingdom known as the Irish Free State, the status of the territorial waters naturally took on a significance it had not had before. The Northern Ireland Unionists were conscious of this matter from an early stage. They were keen to put it beyond doubt that the territorial waters around Northern Ireland would not belong to the Irish Free State. In this regard, Sir James Craig, the Prime Minister of Northern Ireland put the following question in the British House of Commons on 27 November 1922 :
In response the Attorney General, Sir Douglas Hogg said that "I have considered the question, and I have given an opinion that that is so ".

Dispute arises

A particular dispute arose between the Government of the Irish Free State of the one part and the Northern Ireland and UK Governments of the other part over territorial waters in Lough Foyle. Lough Foyle lies between County Londonderry in Northern Ireland and County Donegal in the then Irish Free State. A court case in the Free State in 1923 relating to fishing rights in Lough Foyle held that the Free State's territorial waters ran right up to the shore of County Londonderry. In 1925, the Chief Justice of the Irish Free State, Hugh Kennedy, advised the President of the Executive Council of the Irish Free State, W. T. Cosgrave, as follows:
In 1927, illegal fishing on Lough Foyle had become so grave that Northern Ireland Prime Minister, James Craig entered into correspondence with his Free State counterpart, W. T. Cosgrave. Craig indicated to Cosgrave that he proposed to introduce a Bill giving the Royal Ulster Constabulary powers to stop and search vessels on Lough Foyle. Cosgrave asserted all of Lough Foyle was Free State territory and that as such a Bill of that nature would be rejected by the Free State and its introduction would create "a very serious situation". Cosgrave then raised the matter with the British government.
In 1936, the Minister for External Affairs was asked in Dáil Éireann if he intended to take any steps to safeguard and maintain the rights to fishing in certain parts of Lough Foyle, claimed by and hitherto enjoyed by Free State nationals. The Vice-President, responding, noted that there had been correspondence between the two Governments in recent years. He summarised the position as currently being that:
The Minister was criticised by Opposition politicians for his government's overall indecision on whether the Irish Free State should remain part of the British Commonwealth, a spokesman claiming this was why the Government had such difficulty with the British Government's first pre-condition.

Second World War

With the fall of France in 1940, the British Admiralty ordered convoys to be re-routed through the north-western approaches which would take them around the north coast and through the North Channel to the Irish Sea. However, escorting those convoys raised a problem: it became imperative to establish an escort base as far west in the United Kingdom as possible. There was one obvious location: Lough Foyle. However, it remained unclear where the border was between the UK and Ireland in Lough Foyle. On 31 August 1940, Sir John Maffey, the UK's representative to the Irish government, wrote to the Dominions Office in London that:
In September 1940 Maffey approached the Irish External Affairs Secretary, Joseph Walshe, to inform him ‘of the intended increase of light naval craft’ in Lough Foyle. The Royal Navy increased its use of Lough Foyle in the early months of 1941. The Royal Navy remained concerned that there might be a challenge to its use of the Foyle on the grounds that ships navigating the river to Lisahally and Londonderry might be infringing Irish neutrality. If the border followed the median line of Lough Foyle then the channel might be in Irish waters as it "lies near to the Eire shore". In mid-November 1941, legal opinions of solicitors to The Honourable The Irish Society were presented to the Royal Navy. The Hon. The Irish Society's view was that the whole of Lough Foyle was part of County Londonderry and accordingly the border could not be that of the median line of Lough Foyle. The Royal Navy continued to use its new base on the Foyle until 1970.

British Cabinet consideration in 1949

At a British Cabinet meeting on 22 November 1948 it was decided that a working party be established to " what consequential action may have to be taken by the United Kingdom Government as a result of Éire's ceasing to be a member of the Commonwealth". The Working Party was chaired by the Cabinet Secretary, Norman Brook. Its report dated 1 January 1949 was presented by Prime Minister Clement Attlee to the Cabinet on 7 January 1949. The following is para 23 of the Working Party's report :

Dispute simmers

The division of the territorial waters continued to be a matter disputed between the two Governments. On 29 February 1972, during a Dáil debate about internment in Northern Ireland, deputy Richie Ryan questioned the legitimacy of anchoring the Maidstone prison ship in Belfast Lough to accommodate internees. A good summary of the Irish position on the territorial waters issue was given by then Taoiseach, Mr. Jack Lynch:
Other incidents have occurred from time to time in the disputed waters, and they have been discussed in Dáil Éireann occasionally.

Current status

The territorial dispute between Ireland and the United Kingdom concerning Lough Foyle is still not settled. As recently as 2005, when asked to list those areas of EU member states where border definition is in dispute, a British Government minister responding for the Secretary of State for Foreign and Commonwealth Affairs stated:
In 2009, the territorial dispute concerning Lough Foyle was raised in a meeting of the Northern Ireland Assembly's Committee for Enterprise Trade and Investment. The committee was meeting to discuss Project Kelvin, a project involving the construction of a fiber optic telecommunications cable between North America and Northern Ireland. Mr Derek Bullock, an executive from Hibernia Atlantic Limited, the cable-laying company leading the project's implementation had to explain to the committee why the cable landing station was going to be located at Coleraine rather than Derry City as initially indicated. He explained that one of the reasons it had been decided not to locate the cable landing station in Lough Foyle was because:
The Foreign and Commonwealth Office underlined its view on 2 June 2009 that all of Lough Foyle is in the United Kingdom, a spokesperson stating:
A corresponding statement was made by Conor Lenihan, then an Irish Government Minister:
The two governments signed a Memorandum of Understanding pertaining to the promotion of offshore renewable energy development in the seas adjacent to the Lough Foyle in 2011. This was signed without prejudice to outstanding issues concerning sovereignty.

Partition and sport

Following partition some social and sporting bodies divided but others did not. Today in Ireland many sports, such as boxing, Gaelic football, hurling, cricket and rugby union, are organised on an all-island basis, with a single team representing Ireland in international competitions. Other sports, such as association football, have separate organising bodies in Northern Ireland and the Republic of Ireland. At the Olympics, a person from Northern Ireland can choose to represent either the Republic of Ireland team or United Kingdom team. Selection usually depends on whether his or her sport is organised on an all-Ireland, a Northern Ireland, or a UK basis. Sports organised on an all-Ireland basis are affiliated to the Republic of Ireland's Olympic association, whereas those organised on a Northern Ireland or UK basis are generally affiliated to the UK's Olympic association.

Partition and rail transport

was seriously affected by partition. The railway network on either side of the border relied on cross-border routes, and eventually a large section of the Irish railway route network was shut down. Today only the cross-border route from Dublin to Belfast remains, and counties Cavan, Donegal, Fermanagh, Monaghan and Tyrone have no rail services.

After partition

Constitution of Ireland 1937

De Valera came to power in Dublin in 1932, and drafted a new Constitution of Ireland which in 1937 was adopted by plebiscite in the Irish Free State. Its articles 2 and 3 defined the 'national territory' as: "the whole island of Ireland, its islands and the territorial seas". The state was named 'Ireland' and 'Éire' ; a United Kingdom Act of 1938 described the state as "Eire".
To unionists in Northern Ireland, the 1937 constitution made the ending of partition even less desirable than before. Most were Protestants, but article 44 recognised the 'special position' of the Roman Catholic Church. Further, the preamble referred to: "...our Divine Lord, Jesus Christ, Who sustained our fathers through centuries of trial, Gratefully remembering their heroic and unremitting struggle to regain the rightful independence of our Nation,"; this was an independence that unionists had opposed, and seemed to imply in an insulting fashion that Jesus had sustained only the Irish independence movement, and never the unionist cause. All spoke English, but article 8 stipulated that the new 'national language' and 'first official language' was to be Irish, with English as the 'second official language'.
The irrendentist texts in Articles 2 and 3 were deleted by the Nineteenth Amendment in 1998, as part of the Belfast Agreement.

Anti-partition groups

Nationalists also established a number of anti-partition groups campaigning against the border, starting with de Valera's National League of the North which was renamed the Irish Union Association and then the Anti-Partition League in 1938. These were followed by the Northern Council for Unity, the Irish Anti-Partition League, the All Ireland Anti-Partition League and finally National Unity in 1964. None achieved an electoral majority and they were prone to divisions.
In the United States the 1947 Irish Race Convention arranged for a vote in the US Congress whereby Marshall Aid for Britain would be conditional on the end of partition. The vote was lost by 206 votes to 139, with 83 abstaining.

British offer of unity in 1940

During the Second World War, after the Fall of France, Britain made a qualified offer of Irish unity in June 1940, without reference to those living in Northern Ireland. On their rejection, neither the London or Dublin governments publicised the matter.
Ireland would have joined the allies against Germany by allowing British ships to use its ports, arresting Germans and Italians, setting up a joint defence council and allowing overflights.
In return, arms would have been provided to Ireland and British forces would cooperate on a German invasion. London would have declared that it accepted 'the principle of a United Ireland' in the form of an undertaking 'that the Union is to become at an early date an accomplished fact from which there shall be no turning back.'
Clause ii of the offer promised a joint body to work out the practical and constitutional details, 'the purpose of the work being to establish at as early a date as possible the whole machinery of government of the Union'.
The proposals were first published in 1970 in a biography of de Valera.

1945–1973

In May 1949 the Taoiseach John A. Costello introduced a motion in the Dáil strongly against the terms of the UK's Ireland Act 1949 that confirmed partition for as long as a majority of the electorate in Northern Ireland wanted it, styled in Dublin as the "Unionist Veto". This was a change from his position supporting the Boundary Commission back in 1925, when he was a legal adviser to the Irish government. A possible cause was that his coalition government was supported by the strongly republican Clann na Poblachta. From this point on all the political parties in the Republic were formally in favour of ending partition, regardless of the opinion of the electorate in Northern Ireland.
The new republic could not, and in any event did not wish to, remain in the Commonwealth; and it chose not to join NATO when that was founded in 1949. These decisions broadened the effects of partition, but were in line with the evolving policy of Irish neutrality.
Congressman John E. Fogarty was the main mover of the Fogarty Resolution on 29 March 1950. This proposed suspending Marshall Plan Foreign Aid to the UK, as Northern Ireland was costing Britain $150,000,000 annually, and therefore American financial support for Britain was prolonging the partition of Ireland. Whenever partition was ended, Marshall Aid would restart. On 27 September 1951, Fogarty's resolution was defeated in Congress by 206 votes to 139, with 83 abstaining – a factor that swung some votes against his motion was that Ireland had remained neutral during World War II.
The Taoiseach Seán Lemass visited Northern Ireland in secrecy in 1966, leading to a return visit to Dublin by Terence O'Neill; it had taken four decades to achieve such a simple meeting. The impact was further reduced when both countries joined the European Communities in 1973. After the onset of the Troubles, a 1973 referendum showed that a majority of the electorate in Northern Ireland did want to continue the link to Britain as expected, but the referendum was boycotted by Nationalist voters.

Possibility of British withdrawal in 1974

Following the start of the Troubles in Northern Ireland in 1969, the Sunningdale Agreement was signed by the Irish and British governments in 1973. This collapsed in May 1974 due to the Ulster Workers' Council strike, and the new British Prime Minister Harold Wilson considered a rapid withdrawal of the British Army and administration from Northern Ireland in 1974–75 as a serious policy option. The relevant cabinet notes remained secret until 2005.
The effect of such a withdrawal was considered by Garret FitzGerald, the then Minister for Foreign Affairs in Dublin, and recalled in his 2006 essay. The Irish cabinet concluded that such a withdrawal would lead to widescale civil war and a greater loss of life, which the Irish Army of 12,500 men could do little to prevent.

The Good Friday Agreement

The Good Friday Agreement in 1998, was ratified by two referendums in both parts of Ireland, including an acceptance by the Republic that its claim to Northern Ireland would only be achieved by peaceful means. This was an important part of the Northern Ireland peace process that had been under way since 1993. The Government of Ireland Act 1920 was repealed in the UK by the Northern Ireland Act 1998 as a result of the Agreement, and in Ireland by the Statute Law Revision Act 2007.