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 -
Chad–Nigeria relations the wake of the Chibok schoolgirl kidnapping, Chad's minister of national defense, Benaindo Tatola, met with Cameroon's defense minister Edgard Allain Mebe Ngo'o in Yaounde. "Ngo'o said Chad had also deployed troops to work together with Cameroonian forces on the borders with Nigeria. He also said troops from the two countries will cross into Nigeria and fight Boko Haram in collaboration with Nigerian forces." Chad–Nigeria relations Nigeria considered France its primary rival in its attempt to chart the course of West Africa's political development. Its generally paternalistic relations with Chad intensified after the coup that ousted President François Tombalbaye in