Irish War of Independence: On "Bloody Sunday" in Dublin, the Irish Republican Army (IRA) assassinated a group of British Intelligence agents, and British forces killed 14 civilians at a Gaelic football match at Croke Park.

The Irish War of Independence, also known as the Anglo-Irish War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army and British forces: the British Army, along with the quasi-military Royal Irish Constabulary (RIC) and its paramilitary forces the Auxiliaries…