The Nigerian government's amnesty program for MEND (the movement for the emancipation of the Niger Delta) is drawing to a close. Despite claims that the cache of weapons the gov't "retrieved" from former guerrillas were bought/brought in from out of country and that many of those guerrillas that "surrendered" were hired as stand-ins (a form of astroturfing), many of the known top commanders of MEND did actually surrender. They were personally offered cash, a home, and protection for their families in exchange for participation.
However, since MEND isn't a hierarchical organization, which might have been badly damaged by an amnesty program. Instead, it is a mix of marketplace (bazaar of violence) and open source networks/warfare, and therefore the "victory" the government is claiming will be short lived. Why? These "commanders" will be rapidly replaced (in fact, actively encouraged by MEND to retire), and their units will be quickly reformed, since its easy to hire on short notice and short dollars a new cadre in an area with nearly zero employment opportunities. Soon, these new and anonymous commanders will be running their own businesses, carrying out attacks on oil pipelines and facilities (something that MEND claims will begin next week) and generating revenues from oil bunkering.
The former commanders, at least those that actually get some of what the government promised (that's in question due to extreme corruption), will be safely retired from the guerrilla business.