Lake Chad the Yobe River in Nigeria/Niger. Despite high levels of evaporation, the lake is fresh water. Over half of the lake's area is taken up by its many small islands (including the Bogomerom archipelago), reedbeds and mud banks, and a belt of swampland across the middle divides the northern and southern halves. The shorelines are largely composed of marshes. Because Lake Chad is very shallow—only at its deepest—its area is particularly sensitive to small changes in average depth, and consequently it also shows seasonal fluctuations in size. Lake Chad has no apparent outlet, but its waters percolate into the Soro and
Chad–Nigeria relations 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 1975. After that, limiting Libyan expansion while avoiding direct clashes with Libyan troops also became important goals. Nigeria sponsored talks among Chad's rival factions in 1979 and promoted a little-known civil servant, Mahmat Shawa Lol, as a compromise head of a coalition government. Lol's perceived status as a Nigerian puppet contributed to mounting opposition during his short term as president in 1979. The two