Question: The Irish Free State, (6 December 1922 - December 1937) was a state established in 1922 under the Anglo-Irish Treaty of December 1921, the treaty ended the three-year Irish War of Independence between the forces of which self-proclaimed revolutionary state that declared its independence from the United Kingdom of Great Britain and Ireland?
Sentence (from "Irish Republic"): The Republic claimed jurisdiction over the whole island of Ireland, but by 1920 its functional control was limited to only 21 of Ireland's 32 counties, and British state forces maintained presence across much of the north-east, as well as Cork, Dublin and other major towns.
Relevant evidence: No