In the lawless period at the end of the Derg rule and immediately afterwards, Nechisar suffered much damage. Park buildings located far from the headquarters were looted and damaged. At the same time, the local Guji returned to their traditional grazing areas. According to one source, they fled there from the attacks of the Borena Oromo, who in turn were victimized by neighboring ethnic groups, their presence degrading the environment and contributing to the local extinction of many species. The Guji also acquired firearms during this period, and used them to resist eviction from the park afterwards. In 2005, Refugees International criticized their eviction.