On this edition of Africa 54: VOA UN Correspondent Margaret Besheer will join us for live coverage of the 76th Annual United Nations General Assembly; Nigerian refugees have halted accelerating desertification at a camp in northern Cameroon through an ambitious planting program - a part of Africa's Great green Wall initiative; & an interview withAigboje Aig-Imoukhuede, Chairman of the Board of Directors for ABC Health, to discuss issues pertaining to investing in Africa's health system.