 A disagreement over defending Nationalists from British State forces and elements of Unionism led to a split in the IRA, and the two new paramilitary organizations became known as the Official IRA and Provisional IRA.In the early years, 1969 to 1972, the Officials were the most prominent in Creggan and the rest of Northern Ireland with militant members such as Joe McCann carrying attacks out on the British Army, even though the Provisionals as a whole were carrying out a more violent campaign along with a bombing campaign in Derry City Centre.Following the introduction of internment without trial being carried out by the British government, the Bogside and Creggan effectively became a no-go area for the British government and was only controlled and policed by both wings of the IRA.