Éamon de Valera new line. However, a vote to accept the Free State Constitution (contingent on the abolition of the Oath of Allegiance) narrowly failed. Soon afterward, de Valera resigned from Sinn Féin and seriously considered leaving politics. However, one of his colleagues, Seán Lemass, convinced de Valera to found a new republican party. In March 1926, with Lemass, Constance Markievicz and others, de Valera formed a new party, Fianna Fáil ("The Warriors of Destiny"), a party that was to dominate 20th-century Irish politics. While Sinn Féin still held to an abstentionist line, Fianna Fáil was dedicated to republicanising the Free State from
Éamon de Valera the country with British troops unless action was taken. When fighting broke out in Dublin between the Four Courts garrison and the new Free State Army, republicans backed the IRA men in the Four Courts and civil war broke out. De Valera, though he held no military position, backed the anti-Treaty IRA or "Irregulars" and said that he was re-enlisting in the IRA as an ordinary volunteer. On 8 September 1922, he met in secret with Richard Mulcahy in Dublin, to try to halt the fighting. However, according to de Valera, they "could not find a basis" for agreement. Though