It was largely supported by personnel and resources of the Nigerian Armed Forces, with sub-battalion strength units contributed by other ECOWAS members — Ghana, Guinea, Sierra Leone, The Gambia, Liberia, Mali, Burkina Faso, Niger, and others.
Within Africa, ECOMOG represented the first credible attempt at a regional security initiative since the Organisation of African Unity (OAU) tried to establish an 'Inter-African Force' to intervene in Chad in 1981.
[4] Their service was, however, short-lived, after a major confrontation with Taylor forces in Vahun, Lofa County on 28 May 1992, when six were killed when a crowd of NPFL supporters surrounded their vehicle and demanded they surrender their jeep and weapons.
Stephen Ellis reports one of the most egregious examples as being the total removal of iron ore processing machinery for onward sale while the Buchanan compound was under ECOMOG control.
[10] In 2003 ECOWAS, under pressure from the United States, launched a similar mission named ECOMIL to halt the occupation of Monrovia by rebel forces as peace efforts were ongoing, during the Second Liberian Civil War.