first paramilitary grouping to split as a result of their ceasefire, spawning the Loyalist Volunteer Force (LVF) in 1996. In December 1997, the INLA assassinated LVF leader Billy Wright, leading to a series of revenge killings by loyalist groups. A group split from the Provisional IRA and formed the Real IRA (RIRA). In August 1998, a Real IRA bomb in Omagh killed 29 civilians, the most by a single bomb during the Troubles. This bombing discredited "dissident republicans" and their campaigns in the eyes of many who had previously supported the Provisionals' campaign. They became small groups with little influence, but still capable of violence. The INLA also declared a ceasefire after the Belfast Agreement of 1998. Since then, most paramilitary violence has been directed at their "own" communities and at other factions within their organisations. The UDA, for example, has feuded with their fellow loyalists the UVF on two occasions since 2000. There have been internal struggles for power between "brigade commanders" and involvement in organised crime. Political process After the ceasefires, talks began between the main political parties in Northern Ireland to establish political agreement. These talks led to the Good Friday Agreement of 1998. This Agreement restored self-government to Northern Ireland on the basis of "power-sharing". In 1999, an executive was formed consisting of the four main parties, including Sinn Féin. Other important changes included the reform of the RUC, renamed as the Police Service of Northern Ireland, which was required to recruit at least a 50% quota of Catholics for ten years, and the removal of Diplock courts under the Justice and Security (Northern Ireland) Act 2007. A security normalisation process also began as part of the treaty, which comprised the progressive closing of redundant British Army barracks, border observation towers, and the withdrawal of all forces taking part in Operation Banner – including the resident battalions of the Royal Irish Regiment – that would be replaced by an infantry brigade, deployed in ten sites around Northern Ireland but with no operative role in the province. The power-sharing Executive and Assembly were suspended in 2002, when unionists withdrew following "Stormontgate", a controversy over allegations of an IRA spy ring operating at Stormont. There were ongoing tensions about the Provisional IRA's failure to disarm fully and sufficiently quickly. IRA decommissioning has since been completed (in September 2005) to the satisfaction of most parties. A feature of Northern