Sinn Féin for nine years. (It merged with two other organisations to form Fine Gael in 1933.) Anti-Treaty Sinn Féin members continued to boycott the Dáil. At a special "Ard Fheis" in March 1926, de Valera proposed that elected members be allowed to take their seats in the Dáil if and when the controversial Oath of Allegiance was removed. When his motion was defeated, de Valera resigned from Sinn Féin; on 16 May 1926, he founded his own party, Fianna Fáil, which was dedicated to republicanising the Free State from within its political structures. He took most Sinn Féin TDs with him.
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