Chad Basin demand for ivory, but stocks have since recovered. The seasonal Korama River in the south of Niger does not reach Lake Chad. Nigeria includes two sub-basins that drain into Lake Chad. The Hadejia - Jama'are - Yobe sub-basin in the north contains the Hadejia and Jama'are rivers, which supply the Hadejia-Nguru wetlands. They converge to form the Yobe, which defines the border between Niger and Nigeria for , flowing into Lake Chad. About of water reaches Lake Chad annually. Construction of upstream dams and growth in irrigation have reduced water flow, and the floodplains are drying up. The Yedseram -
Multinational Joint Task Force Multinational Joint Task Force The Multinational Joint Task Force (MNJTF) is a combined multinational formation, comprising units, mostly military, from Benin, Cameroon, Chad, Niger, and Nigeria. It is headquartered in N'Djamena and is mandated to bring an end to the Boko Haram insurgency. The task force was first organised as a solely Nigerian force in 1994, during the administration of Sani Abacha, to "checkmate banditry activities and to facilitate free movement" along its northern border. In 1998 it was expanded to include units from neighbouring Chad and Niger with the purpose of dealing with common cross-border security issues in the