Boko Haram
a radical Islamist group based in northern Nigeria. Founded by Mohammad Yusuf on Salafist principles, Boko Haram conducts terrorist attacks, executions of people it deems apostates, and mass kidnappings in and near Nigeria. The name Boko Haram refers to its rejection of Western education and values. Estimated to have killed at least twenty thousand people, it pledged its allegiance to the self-proclaimed Islamic State in 2015.