For most of its history, Nigeria has witnessed sporadic episodes of insecurity; a phenomenon traditionally manifested in political, electoral, religious and ethnic violence, and, more recently, terrorism. This book investigates the core issues that have led to, and shaped the development and sustenance of, organised political violence in Nigeria. Focusing on elite political culture and State governance, it examines important elements of the socio-political environment, including zero-sum politics, identity politics, and the politicisation of social cleavages. As such, it represents an invaluable resource on the issue of organised political violence too often glossed over in research on insecurity in Nigeria. Scholars in security studies and national security policy analysts will find this text enlightening.