In December 1983 the new régime of the Head of State of Nigeria, Major General Muhammadu Buhari, announced that Nigeria could no longer afford an activist anti-colonial role in Africa. Anglophone members of the Economic Community of West African States (ECOWAS) established ECOMOG, dominated by the Nigerian Army, in 1990 to intervene in the civil war in Liberia. Smaller army forces had previously carried out UN and ECOWAS deployments in the former Yugoslavia, Angola, Rwanda, Somalia, and Sierra Leone.