 In September of that year they had documented 1.9 million displaced civilians from homes in Mogadishu alone during the year 2007.Prime Minister Nur Hassan of the transitional government and Sheikh Sharif Sheikh Ahmed of opposition group Alliance for the Re-Liberation of Somalia (ARS) signed a power sharing deal in Djibouti that was brokered by the United Nations.According to the deal, Ethiopian troops withdrew from Somalia, giving their bases to the transitional government, African Union (AU) peacekeepers and moderate Islamist groups led by ARS.