Below are previous ECOWAS military interventions: LIBERIA In 1990, West African leaders sent a neutral military force to Liberia to intervene in the civil war between the forces of President Samuel Doe and two rebel factions. The unprecedented deployment of a regional force, the ECOWAS Monitoring Group (ECOMOG), helped restore some security but the troops were complicit in a series of human rights abuses, according to Human Rights Watch. Troop numbers peaked at around 12,000 and the last ones left Liberia in 1999, two years after former rebel leader Charles Taylor was elected president.