Boko Haram is the most significant threat to Nigeria, causing tens of thousands of deaths and millions of displacements. The neighboring countries of Chad, Niger, and Cameroon have offered to cooperate with Nigeria to stop the progress of the militant group. The rise of Boko Haram is the result of deep religious and ethnic cleavages, political corruption, and inequality in Nigeria. The group started to radicalize between episodic clashes that took place between Muslims and Christians. The group's tactics include kidnappings, suicide bombings, and destruction of property, particularly schools.