The Jamestown Foundation's Terrorism Monitor, 12 Apr 07:

Guide to the Armed Groups Operating in the Niger Delta – Part 1
During the course of the last year in Nigeria's oil-rich but turbulent Niger Delta region, armed men kidnapped more than 150 foreigners, killed unknown numbers of Nigerian armed forces personnel, crippled the oil production of Africa's largest oil exporter by nearly a quarter and detonated five car bombs. There is a bewildering variety of armed groups operating in the delta, ranging from community vigilantes to armed political movements to criminal gangs. The groups, whose aims and members often overlap, are involved in activities that include kidnapping, theft of crude oil, attacking oil infrastructure, extortion, bombings, murders and rigging elections. Without adequate equipment or political will, the military cannot tackle the problem effectively. Unrest in the Niger Delta can be traced back to the beginning of oil exploration, when impoverished communities were exploited and polluted, while billions of dollars were extracted from underneath their feet. In many cases, however, criminal elements and corrupt politicians have exploited the expression of legitimate grievances and armed many of these groups for their own ends. The emergence of modern militant groups is closely related to politics, corruption and bad governance in the delta. Both the 2003 polls and this month's coming elections have strengthened pre-existing armed groups.

For the purposes of clarity, this two-part analysis focuses on militias and gangs—with part two focusing exclusively on the Movement for the Emancipation of the Niger Delta (MEND)—and discusses the existence of community groups within that framework. It also explains their leadership structures and links to politicians. In reality, the distinctions are somewhat arbitrary. The gunmen and the government are as tangled together as the mangrove roots of the swamps in the Niger Delta....