Northern Region, Nigeria patches of grass and sand, found in the northeast. In the Sahel region, rain is less than 20 inches (508 mm) per year and the Sahara Desert is encroaching. In the dry north-east corner of the country lies Lake Chad, which Northern Nigeria shares with Niger, Chad and Cameroon. Northern Nigeria is divided into 18 provinces: Kano, the largest of the provinces in terms of population and economy is in the North-Central part of the country. The Kano Native Authority an offshoot of the fula Kano Emirate inherited the ancient trade industries that fuelled the trans saharan trade with North
Military of Chad participated in a peace mission under the authority of African Union in the neighboring Central African Republic to try to pacify the recent conflict, but has chosen to withdraw after its soldiers were accused of shooting into a marketplace, unprovoked, according to BBC. "Currently, Cameroon has an ongoing military-military relationship with Chad, which includes associates training for Chadian military in Cameroon. There are four brigade Chado-Cameroonian in January 2012. Cameroon and Chad are developing excellent relations". Military of Chad The military of Chad consists of the National Army (includes Ground Forces, Air Force, and Gendarmerie), Republican Guard, Rapid Intervention Force,