📍 Leadership Crisis Hits NSCN-IM as Muivah Reverses Unauthorized Promotions. Tension is rising within the NSCN-IM as reports emerge of an internal power struggle over leadership and control. The long-time leader, Thuingaleng Muivah, has reportedly ordered the reversal of several unauthorized promotions, sending shockwaves through the group’s ranks. Sources within the organization say the move has created confusion and resentment among some senior members who were affected by the decision. The a