Nigeria's militant Islamist group Boko Haram - which has caused havoc in Africa's most populous country through a wave of bombings - is fighting to overthrow the government and create an Islamic state.
Boko Haram leader Abubakar Shekau says his group will not be defeated |
Its followers are said to be influenced by the Koranic phrase which says: "Anyone who is not governed by what Allah has revealed is among the transgressors".
Boko Haram promotes a version of Islam which makes it "haram", or forbidden, for Muslims to take part in any political or social activity associated with Western society.
This includes voting in elections, wearing shirts and trousers or receiving a secular education.
Boko Haram regards the Nigerian state as being run by non-believers, even when the country had a Muslim president.