Rebel leader Mujahid Dokubo-Asari of the Niger Delta People’s Volunteer Force is surrounded by his soldiers as they prepare for war in the creeks of the Niger Delta in Nigeria in this September 28, 2004 file photo. Asari, who is from the oil-producing Niger Delta, was questioned by police over “treasonable” comments on September 21, 2005 while his loyalists took to the streets and threatened violence. REUTERS/George Esiri/Files