


About 300 people had been killed by late 1920, but the conflict escalated in November. In mid-1920, republicans won control of most county councils, and British authority collapsed in most of the south and west, forcing the British government to introduce emergency powers. The conflict also involved civil disobedience, notably the refusal of Irish railwaymen to transport British forces or military supplies.

Thus the conflict is sometimes called the "Black and Tan War". The British government bolstered the RIC with recruits from Britain-the Black and Tans and Auxiliaries-who became notorious for ill-discipline and reprisal attacks on civilians, some of which were authorised by the British government. The IRA began ambushing RIC and British Army patrols, attacking their barracks and forcing isolated barracks to be abandoned. In September, the British government outlawed the Dáil and Sinn Féin and the conflict intensified. For most of 1919, IRA activity involved capturing weaponry and freeing republican prisoners, while the Dáil set about building a state. That day, two RIC officers were killed in the Soloheadbeg ambush by IRA volunteers acting on their own initiative. On 21 January 1919 they formed a breakaway government ( Dáil Éireann) and declared Irish independence. In the December 1918 election, republican party Sinn Féin won a landslide victory in Ireland. Although it was crushed after a week of fighting, the Rising and the British response led to greater popular support for Irish independence. In April 1916, Irish republicans launched the Easter Rising against British rule and proclaimed an Irish Republic. It was part of the Irish revolutionary period. The Irish War of Independence ( Irish: Cogadh na Saoirse) or Anglo-Irish War was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (IRA, the army of the Irish Republic) and British forces: the British Army, along with the quasi-military Royal Irish Constabulary (RIC) and its paramilitary forces the Auxiliaries and Ulster Special Constabulary (USC).
