The Civil War began in June 1922 when both Sinn Féin and the IRA split between those pragmatists, who supported the Treaty, and those hardline republicans who opposed the compromises it contained.
A Guerra Civil empezou en xuño de 1922 cando o Sinn Féin e o IRA separáronse entre pragmatistas, que apoiaban o Tratado, e aqueles repúblicanos de liña dura que se opuñan aos compromisos que contiña.