As Africa's most populated country, Nigeria has repositioned its military as a peacekeeping force on the continent. Since 1995, the Nigerian military, through ECOMOG mandates, has been deployed as peacekeepers in Liberia (1997), Ivory Coast (1997–1999), and Sierra Leone (1997–1999). Under an African Union mandate, it has stationed forces in Sudan's Darfur region to try to establish peace. The Nigerian military has been deployed across West Africa, curbing terrorism in countries like Mali, Senegal, Chad, and Cameroon, as well as dealing with the Mali War, and getting Yahya Jammeh out of power in 2017.