Yes, you heard it right.
If the SS, SE, and SW all decide to break off at the same time what remains of Nigeria?
The remaining state may, out of heartbreak of losing their periodic 30 allocation, rally round to launch an attack, but I tell you, war is costly and without allocation the rest states are poor.
If the south can break off and remain as a 3-region country for 3 years before finally falling apart, I tell you no other region can stop that. We don't trust ourselves and are just too afraid to act.