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 then the Parliament of Northern Ireland had already met. It became clear that neither a republic, nor independence for all 32 counties, was going to be offered; Lloyd George told de Valera he could "put a soldier in Ireland for every man, woman and child in it" if the IRA did not immediately agree to stop fighting. In August 1921, de Valera secured Dáil Éireann approval to change the 1919 Dáil Constitution to upgrade his office from prime minister or chairman of the cabinet to a full President of the Republic. Declaring himself now the Irish equivalent of King George