At the height of the war between UNITA rebels and the MPLA government of Angola there was - I recall - for a time a plan to fully partition Angola and create two countries. UNITA would have the southern half and the existing MPLA government would hold on to the northern half (including the capital).
This would have been in the 1990s? Maps showed a line of partition approximately along the line of the Benguela railway.
Obviously the idea fizzled out because we still have one Angola. I remember it being thought of as a deeply radical solution to the seemingly interminable civil war, and probably too radical (maybe less so now we have the example of Sudan).
How far did the plan get, and why was it killed?