Chad

presidential republic

<p>Chad emerged from a collection of powerful states that controlled the Sahelian belt starting around the 9th century. These states focused on controlling trans-Saharan trade routes and profited mostly from the slave trade. The Kanem-Bornu Empire, centered around the Lake Chad Basin, existed between the 9th and 19th centuries, and at its peak, the empire controlled territory stretching from southern Chad to southern Libya and included portions of modern-day Algeria, Cameroon, Niger, Nigeria, and Sudan.