ECOMOG stands for Economic Community of West African States Monitoring Group. The main aim of the formation of ECOMOG was to foster stability in West Africa. ECOMOG was created in 1990 by the Economic Community of West African States (ECOWAS) to help restore peace and stability to West African countries experiencing civil unrest and conflicts. The group was mainly involved in peacekeeping and peace enforcement operations in Liberia and Sierra Leone during the 1990s. ECOMOG was later transformed into the ECOWAS Mission in Liberia (ECOMIL) and the ECOWAS Mission in Sierra Leone (ECOMSIL) in 1999 and 2000, respectively.