The Niger River Basin Authority (NBA)brings together nine countries to promote integrated waterresources management across political borders. The nine -Benin, Burkina Faso, Cameroon, Chad, Cote d'Ivoire,Guinea, Mali, Niger, and Nigeria have embraced a sharedvision to build institutional capacity, political agreement,and public support for cooperation. The countries agree thatsustainable management and development of the basin'swater resources are necessary to meet natural and man-madethreats to their shared resources, and that progress can beachieved by integrating technical data on the hydrology andgeography of the river system with judicious political andeconomic policy. The Niger river basin, home to 100 millionpeople, is a vital and complex asset of West and CentralAfrica. The continent's third-longest river, the Nigeris more than just a source of water. For the people of thenine countries it is a source of identity, a route formigration and commerce, a source of conflict, and now acatalyst for cooperation. Niger, with about 23 percent ofthe Basin within its borders, depends on river navigation(through Nigeria) to reach the sea. Nigeria, a major foodgrower on rain-fed and irrigated land, is the finaldownstream country. Its borders enclose some 80 percent ofthe Basin's population and about 28 percent of its territory.