Armed anti-Treaty members of the Irish Republican Army (IRA) in Grafton Street, Dublin during the Irish Civil War. (Photo by Walshe/Getty Images)
A Canadian soldier lights a German prisoner's cigarette during the First World War at Paschendale on the Western Front, November 1917
Doomed? One of the most iconic images of the war shows soldiers of the Royal Irish Rifles waiting to join the offensive on the Somme on 1 Ju...
Irish Republican Army volunteers in Killarney County Kerry c 1919