In early 2011, an uprising against the four-decade rule of Muammar al-Qaddafi led to civil war in the context of the wider "Arab Spring". The anti-Gaddafi forces formed a committee named the National Transitional Council, on 27 February 2011. It was meant to act as an interim authority in the rebel-controlled areas. After a number of atrocities were committed by the government, with the threat of further bloodshed, a multinational coalition led by NATO forces intervened on 21 March 2011 with the aim to protect civilians against attacks by the government's forces. At the same time, the International Criminal Court issued an arrest warrant against Gaddafi and his entourage on 27 June 2011. Gaddafi was ousted from power in the wake of the fall of Tripoli to the rebel forces on 20 August 2011, although pockets of resistance held by forces loyal to Gaddafi's government held out for another two months, especially in Gaddafi's hometown of Sirte, which he declared the new capital of Libya on 1 September 2011.The fall of the last remaining cities under pro-Gaddafi control and Sirte's capture on 20 October 2011, followed by the subsequent killing of Gaddafi, marked the end of the Libyan Arab Jamahiriya.