This Nigeria Fault Lines analysis identifies three intransigent fault lines from a confluence of exploitable conditions. Firstly, the pungent mix of ethnicity and territory is undermining national sovereignty. Secondly, failure to realize nationhood is intensifying violent ethnic factionalism. Thirdly, failure to channel population growth has weaponized demography. The exploitation of each fault line portends grave instability risks, but together, the fault lines could produce cataclysmic outcomes and shift the regional balance of power against the United States.