The election was also noted for the dramatic result in Ireland, which showed clear disapproval of government policy. The Irish Parliamentary Party were almost completely wiped out by the Irish republican party Sinn Féin, who vowed in their manifesto to establish an independent Irish Republic. They refused to take their seats in Westminster, instead forming a breakaway government and declaring Irish independence. The Irish War of Independence began soon after the election. Because of the resulting partition of Ireland, this was the last United Kingdom general election to include the entire island of Ireland.