sentences:  Between May 31 and June 9, 2008, representatives of Somalia's federal government and the moderate Alliance for the Re-liberation of Somalia (ARS) group of Islamist rebels participated in peace talks in Djibouti brokered by the UN.The conference ended with a signed agreement calling for the withdrawal of Ethiopian troops in exchange for the cessation of armed confrontation.Parliament was subsequently expanded to 550 seats to accommodate ARS members, which then elected a new president.