I will try to make a timeline 1995: Mandela proposes to unite all southern African countries 1997: The South African Union is formed 2003: An independence movement arises in Portugal's overseas territories, a referendum is held and 67% want independence 2011: South Sudan gains independence in a referendum, 56 voted for and 45 against 2012 A civil war begins, Sudan joins the faction against independence, Chad joins South Sudanese forces as they had a military agreement 2014: RCA takes advantage of Chad's concentration in the war and invades some northern territories 2015: South Sudan loses the war, is re-annexed and Chad has some of its territories annexed by CAR and Sudan 2019: Belgium splits after a referendum, Wallonia is annexed by France and Flanders is independent
