In Africa, U.S.-Trained Militaries Are Ousting Civilian Governments in Coups
At this point it's safe to assume that this is always the unstated part of the plan.  Keeping individual areas destabilized1. decreases nations' ability to organize,2. prevents them from properly utilizing their natural resources,3. reduces possible competition at the global economic level,4. increases the the possibility of extracting resources and labor from them due to an increase of various factors like economic desperation and political variability.It serves fully developed countries' interests better to keep everyone else down so they can be exploited.  Negotiating with blocs rather than newly instated and flexible rulers annoying and difficult.