The Islamic extremist Boko Haram is “perpetually mutating” according to Cameroon military leaders – and it has a well-organised structure with constantly changing tactics.

According to Sky News, they were given limited access to special forces in Cameroon who are at the forefront of the battle against the extremist militant group.

The Boko Haram group is increasingly conducting its operations over Nigeria’s borders and mounting attacks on neighbouring countries like Cameroon.

Our team travelled to the north of the country and its border with Nigeria where the militant group was born and joined the Cameroon elite unit, the rapid response battalion or BIR, as it attempted to secure the long, porous border with Nigeria.