External association was a hypothetical relationship between Ireland and the British Commonwealth proposed by Éamon de Valera in 1921–22, whereby Ireland would be a sovereign state associated with, but not a member of, the Commonwealth; the British monarch would be head of the association, but not head of state of Ireland. De Valera proposed external association as a compromise between isolationist Irish republicanism on the one hand and Dominion status on the other. Whereas a full republic could not be a member of the Commonwealth until the London Declaration of 1949, a Dominion could not be fully independent until the Statute of Westminster 1931.
External association was never implemented as such; however, de Valera's 1930s diplomacy reflected similar ideas, as did the Commonwealth's London Declaration.
Troy D. Davis suggests de Valera's thinking on external association was influenced, during his tour of the United States in 1919–20, by the US Sugar Intervention in Cuba. Nicholas Mansergh traces the first reference to "external association" to 27 July 1921, preceding a proposal by de Valera on 10 August for a treaty of free association between the Irish Republic and Great Britain. De Valera told Mansergh in 1965 that the idea of external association came to him "one morning as he was tying his bootlaces", shortly after Jan Smuts' exploratory visit following the June 1921 ceasefire which ended the Anglo-Irish War (later called the Irish War of Independence). In September 1921, de Valera appointed plenipotentiaries to negotiate a peace treaty, and explained his concept to them. Arthur Griffith later said de Valera told him the idea was to get out of the "straitjacket of the Republic" while "bringing Cathal along", referring to Cathal Brugha, the staunchest republican in the Dáil ministry.
Document No. 2
The British ministers negotiating with the Irish plenipotentiaries rejected the idea of external association, and the Anglo-Irish Treaty the two sides signed on 6 December 1921 provided for an Irish Free State with the same status as the Dominion of Canada. De Valera opposed this, and in the Second Dáil debate on the Treaty offered his alternative "Document No. 2", of which articles 2 to 6 described the "Terms of Association":
- That, for purposes of common concern, Ireland shall be associated with the States of the British Commonwealth, viz: the Kingdom of Great Britain, the Dominion of Canada, the Commonwealth of Australia, the Dominion of New Zealand, and the Union of South Africa.
- That when acting as an associate the rights, status, and privileges of Ireland shall be in no respect less than those enjoyed by any of the component States of the British Commonwealth.
- That the matters of “common concern” shall include Defence, Peace and War, Political Treaties, and all matters now treated as of common concern amongst the States of the British Commonwealth, and that in these matters there shall be between Ireland and the States of the British Commonwealth “such concerted action founded on consultation as the several Governments may determine”.
- That in virtue of this association of Ireland with the States of the British Commonwealth citizens of Ireland in any of these States shall not be subject to any disabilities which a citizen of one of the component States of the British Commonwealth would not be subject to, and reciprocally for citizens of these States in Ireland.
- That, for purposes of the Association, Ireland shall recognise His Britannic Majesty as head of the Association.
De Valera, a former mathematics teacher, used Venn diagrams and other graphs to illustrate the relationships he envisaged between Ireland and the Commonwealth. Commentators have suggested the putative virtues of his proposal were too subtle and abstract to appeal to either supporters of the Treaty or republicans opposed to it. A journalist reporting on the Dáil debate said of de Valera's presentation, "One felt, however, we were entering the region of pure casuistry, nebulous, unpalpable and unreal."
The Dáil voted to accept the original Treaty, and de Valera resigned as President of Dáil Éireann. In the Irish Civil War, he was nominal leader of the anti-Treaty side, although the military force was led by republicans who regarded external association as an unacceptable compromise.
De Valera's Fianna Fáil party, founded in 1926, came to power in the Free State after the 1932 general election and proceeded to eliminate many of the symbols of the state's Dominion status, including the Oath of Allegiance and appeal to the Judicial Committee of the Privy Council. Although this implicitly abrogated the 1921 Treaty, the Privy Council ruled in 1935 that the Statute of Westminster 1931 empowered the Free State government to do so.
The Constitution (Amendment No. 27) Act 1936 abolished the office of Governor-General and removed all references to the monarch from the constitution, with most functions reassigned to the Executive Council. However, the Executive Authority (External Relations) Act 1936, passed immediately afterwards, effected that the king continued to be head of state for external purposes, including treaties and accrediting diplomats. In 1937, a new constitution came into effect. This made no mention of the British Commonwealth or monarchy, and established the office of President of Ireland with many of the internal functions of a head of state, including precedence, pardon, signing laws, and appointing ministers, judges, and military officers. Nevertheless, the Constitution alluded to the External Relations Act, which remained in force. Commentators have compared this situation, where the President was the de facto internal head of state while the King was the de jure external head of state, with de Valera's 1920s external association proposal. While he had made "a republic in all but name", De Valera avoided explicitly declaring a republic, which he believed would alienate the Unionist majority in Northern Ireland and thus entrench Partition. Ireland took no part in Commonwealth business; whether it remained a member of the Commonwealth or merely associated with it was a moot point. Nicholas Mansergh wrote in 1948, "External association has never been put into practice because the United Kingdom and the oversea dominions have never recognized that it exists."
Republic of Ireland and London Declaration
Fianna Fáil lost power in 1948, and the Inter-Party Government's Republic of Ireland Act 1948, which came into force in 1949, repealed the External Relations Act and declared the Irish state to be a republic, implicitly leaving the Commonwealth. With the prospect of newly independent India also declaring a republic, the Commonwealth leaders agreed in the London Declaration of 28 April 1949 that republics could be members of the Commonwealth, while the British monarch would remain Head of the Commonwealth. The situation where the monarch was head of the association but not necessarily of its members has been compared to de Valera's external association.
- Associated state, in "free association" with a more powerful state
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