The Juba talks were a series of negotiations between the government of Uganda and the Lord's Resistance Army rebel group over the terms of a ceasefire and possible peace agreement. The talks, held in Juba, the capital of autonomous Southern Sudan, began in July 2006 and were mediated by Riek Machar, the Vice President of Southern Sudan. The talks, which had resulted in a ceasefire by September 2006, were described as the best chance ever for a negotiated settlement to the 20-year-old war. However, LRA leader Joseph Kony refused to sign the peace agreement in April 2008. Two months later, the LRA carried out an attack on a Southern Sudanese town, prompting the Government of Southern Sudan to officially withdraw from their mediation role.