Nigeria (1983: Doomsday)

Nigeria is a nation located in West Africa, the most populous nation in Africa, and founding nation of the West African Union.

Post Doomsday
After doomsday charismatic leader spreads message of unity, of Africa finally taking its place on the world stage. Of shedding its reputation of ineffective, corrupt government, etc. He is assassinated and sparks a revolution leading to a government that establishes anti-corruption laws, and a reformed military system to avoid coups. Founds West African Union as an economic and military alliance with Ivory Coast, Ghana, Togo, and Senegal in 1999.