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 participation in the War on the Allied side, while others, seeing "England's difficulty as Ireland's Opportunity", were pro-German. Strong objections to conscription in the North were voiced by de Valera. In June 1940, to encourage the neutral Irish state to join with the Allies, Winston Churchill indicated to de Valera that the United Kingdom would push for Irish unity, but believing that Churchill could not deliver, de Valera declined the offer. The British did not inform the Government of Northern Ireland that they had made the offer to the Irish government, and De Valera's rejection was not publicised until 1970.