Irish Parliamentary Party first Governor-General of the Irish Free State (1922–1928), an enlightened choice to bridge the gap between the old order and the new generation of Cumann na nGaedheal politicians, although highly partisan (his nephew was Minister for Justice Kevin O'Higgins; Healy made a public attack on Fianna Fáil and Éamon de Valera, which led to republican calls for his resignation). Former party MP Hugh Law was elected as a Cumann na nGaedheal TD during the 1920s. The conservative nationalist National League Party operated between 1926 and 1931, founded by former IPP MPs Captain William Redmond (son of Irish National League and
Éamon de Valera Dáil and the electorate, and the anti-Treatyites under the nominal leadership of de Valera, now descended into the Irish Civil War (June 1922 to May 1923), in which the pro-treaty Free State forces defeated the anti-Treaty IRA. Both sides had wanted to avoid civil war, but fighting broke out over the takeover of the Four Courts in Dublin by anti-Treaty members of the IRA. These men were not loyal to de Valera and initially were not even supported by the executive of the anti-Treaty IRA. However, Michael Collins was forced to act against them when Winston Churchill threatened to re-occupy