Eoin O'Duffy was one of the most controversial figures of modern Irish history. A guerrilla leader and prot?g? of Michael Collins, he rose rapidly through the ranks of the republican movement. By 1922 he was chief of staff of the IRA, a member of the Irish Republican Brotherhood's Supreme Council, and a Sinn F?in deputy in D?il ?ireann. As chief of police, O'Duffy was the strongest defender of the Irish Free State only to become, after his emergence...