Irish Republic the Third Dáil, and all future institutions arising from it, as illegal. (See Second Dáil). The anti-Treaty side was then defeated in the Civil War. Most militant opposition to the Free State came to an end on 24 May 1923 when Frank Aiken, chief-of-staff of the IRA issued the order to "dump arms" and Éamon de Valera issued his address to the "Legion of the Rearguard". Éamon de Valera continued as president of the Sinn Féin political party. In March 1926, Éamon de Valera, along with most anti-Treaty politicians, founded a new party called 'Fianna Fáil' and ended their boycott
Éamon de Valera 16 September 1953, de Valera met British Prime Minister Winston Churchill for the first and only time, at 10 Downing Street. (The two men had seen each other at a party in 1949, but without speaking.) He surprised the UK Prime Minister by claiming that if he had been in office in 1948 Ireland would not have left the Commonwealth. It was during this period that de Valera's eyesight began to deteriorate and he was forced to spend several months in the Netherlands, where he had six operations. In 1955, while in opposition, de Valera spoke against the formation of