 Throughout his 11-year leadership he fought a sustained campaign against Irish Home Rule, including being involved in the formation of the Ulster Volunteers (UVF) in 1912.In the 1918 general election, Carson switched constituencies from his former seat of Dublin University to Belfast Duncairn.Carson strongly opposed the partition of Ireland and the end of unionism as an all-Ireland political force, so he refused the opportunity to be Prime Minister of Northern Ireland or even to sit in the Northern Ireland House of Commons, citing a lack of connection with the place.