The crisis over environmental pollution and economic marginalization from the oil industry reached a peak in January 1993 when 300,000 Ogoni protested against Shell Oil. This organized protest was followed by repeated harassment, arrests, and killing of Ogonis by Federal government troops. Developments in the Ogoni region have been documented by the Office of the General Secretary, Unrepresented Nations and Peoples Organization (UNPO) from January 1993 through April 1994. A timeline of events in the conflict follows