Across the globe, a crucial but largely unseen and unheard of force in the Global War on Terrorism is emerging – young, hardened, militant, radicalized recruits from Africa – a force potent enough to compel governments to revise their handbooks on how best to contend with Islamic extremism.

Former Liberian President Charles Taylor, wanted for war crimes by the international tribunal in Sierra Leone, was arrested on Wednesday in northern Nigeria on the Cameroon border. He was deported to Monrovia and from there transferred to UN custody in Sierra Leone. Just a day before his arrest he had disappeared from the villa in south-eastern Nigeria, where he had been living in exile since stepping down from power in 2003 as part of an arrangement brokered by AU, ECOWAS and other key international actors including the US to end 14 years of civil war in Liberia.

In the last month tensions had mounted in Nigeria's oil rich Delta region due to the kidnapping of four expatriate oil workers and attacks by militant youths at two oil flow stations at Bayelsa state, owned by the energy giant Shell. The violence caused a shock in the Delta. Shell had to evacuate 326 staff and contract workers from four remote oil facilities and shut down production of 211, 000 barrels per day in the western Delta region. This move had led to price increase in the already jumpy oil market.