The UN children's agency, UNICEF, on Saturday kicked off a massive education campaign in southern Sudan aimed at doubling the enrolment in primary schools in the war-ravaged region, officials said. UNICEF deputy director Rima Salah said education was vital in efforts to spur growth in the region, which has been ravaged by more than two decades of deadly war between ex-rebels, the Sudan People Liberation Movement (SPLM), and the Khartoum government.