Declaration of Independence (Ireland) in the context of "Dáil Éireann (Irish Republic)"

The Irish War of Independence (Irish: Cogadh na Saoirse), also known as the 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). It was part of the Irish revolutionary period.

In April 1916, Irish republicans launched the Easter Rising against British rule and proclaimed an Irish Republic. Although it was defeated after a week of fighting, the Rising and the British response led to greater popular support for Irish independence. In the December 1918 election, republican party Sinn Féin won a landslide victory in Ireland. On 21 January 1919 they formed a breakaway government (Dáil Éireann) and declared Irish independence. That day, two RIC officers were killed in the Soloheadbeg ambush by IRA volunteers acting on their own initiative. The conflict developed gradually. For most of 1919, IRA activity involved capturing weaponry and freeing republican prisoners, while the Dáil set about building a state. In September, the British government outlawed the Dáil throughout Ireland, Sinn Féin was proclaimed (outlawed) in County Cork and the conflict intensified. The IRA began ambushing RIC and British Army patrols, attacking their barracks and forcing isolated barracks to be abandoned. 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. Thus the conflict is sometimes called the "Black and Tan War". The conflict also involved civil disobedience, notably the refusal of Irish railwaymen to transport British forces or military supplies.

The ministry of Dáil Éireann (Irish: Aireacht Dáil Éireann) was the cabinet of the 1919–1922 Irish Republic during the Irish War of Independence. The ministry was originally established by the Dáil Constitution adopted by the First Dáil on 21 January 1919, after it issued the Declaration of Independence. This constitution provided for a cabinet consisting of a head of government, known as the Príomh Aire or President of Dáil Éireann, and four other ministers. The Irish Republic modelled itself on the parliamentary system of government and so its cabinet was appointed by and answerable to the Dáil. Under the constitution the President was elected by the Dáil, while the remaining ministers were nominated by the President and then ratified by the Dáil. The Dáil could dismiss both the cabinet as a whole and individual ministers by passing a resolution. Ministers could also be dismissed by the President.

A number of changes were made to the cabinet system after its adoption in January 1919. The number of ministers was increased in April 1919. As established in 1919, the Irish Republic had no explicit head of state; in 1921 the head of the ministry was renamed as President of the Republic. For a brief period the members of this president's cabinet became known as "secretaries of state" rather than ministers. When the Fourth ministry assumed office in 1922 after the approval of the Anglo-Irish Treaty, with Arthur Griffith as its head, cabinet members were once again described as ministers and Griffith adopted the title of President of Dáil Éireann.