Nigeria Sudan savannah is similar but with shorter grasses and shorter trees. Sahel savannah consists of patches of grass and sand, found in the northeast. In the Sahel region, rain is less than per year and the Sahara Desert is encroaching. In the dry northeast corner of the country lies Lake Chad, which Nigeria shares with Niger, Chad and Cameroon. Nigeria's Delta region, home of the large oil industry, experiences serious oil spills and other environmental problems, which has caused conflict. Waste management including sewage treatment, the linked processes of deforestation and soil degradation, and climate change or global warming are
Niger Armed Forces the African Union, Niger defense forces have been involved in multiple missions in the Africa and the West Africa. Niger has been a supporter and volunteered to participate in the African Union future rapid intervention forces. In addition, with the growing threat of Boko Haram, defense forces of Niger, Nigeria, Cameroon and Chad have intensified cooperation to address the trans-border threat of this organization. U.S. and France defense cooperation with Niger has intensified post 9/11 as part of the Global War on Terror. The Niger defense forces along with forces from Chad, Mali, Mauritania have become major partners of France