The threat posed by armed and terrorists groups on peace and security in West Africa deserves our utmost attention. This datasheet on Boko Haram aims to provide information about the historical and ideological foundations of this Islamist movement raging in the North of Nigeria. It focuses on its modus operandi more and more terrorist and its area of influence which is now extended to the capital, Abuja. The datasheet is also exploring its various sources of funding. Finally, the most significant actions of this armed group are listed. This datasheet is part of a series of fact sheets on armed groups in West Africa.