Concept: ECOMOG's early intervention in Liberia was judged by its actions and reception among the warring factions.Explanation:ECOMOG entered Liberia in 1990 to restore peace during the civil war.Its operation was led largely by Nigeria, which supported the government side.As a result, Charles Taylor’s NPFL and other factions saw ECOMOG as taking sides rather than being an impartial peacekeeper.Therefore, at the initial stage, ECOMOG was perceived as partisan.Answer: C. Partisan