Boko Haram insurgency insurgency spread to neighboring Cameroon, Chad, and Niger thus becoming a major regional conflict. In 2015, a coalition offensive forced Boko Haram to retreat into the Sambisa Forest. The insurgency took place within the context of long-standing issues of religious violence between Nigeria's Muslim and Christian communities. Boko Haram has been called the world's deadliest terrorist group, in terms of the number of people it has killed. Nigeria was amalgamated both the Northern and Southern protectorate in 1914, only about a decade after the defeat of the Sokoto Caliphate and other Islamic states by the British which were to constitute
Haram meanings and operates more closely as a dichotomy with "halal", which denotes the permissible. In Arabic-speaking countries, saying ""haram"" can mean 'what a shame' or 'what a pity' (this meaning has been adopted by Modern Hebrew slang as well, and is alike to the Italian use of "peccato"). The term can be used formally as a method for chastising strangers who behave inappropriately, or between friends as a form of teasing. The word is also used to instruct children in how to behave by telling them that harming other children or animals is "haram", among other things. The binary concepts