A civil war marked by the intervention of foreign military troops is known as an internationalized non-international armed conflict.' This type of armed conflict happens often and presents a number of issues of concern to international lawyers. The scope of this article is confined to the application of international humanitarian law in such circumstances, and it does not address the validity of foreign involvement in a civil war. In civil conflicts involving foreign intervention, the sides seldom agree on the facts or their interpretation. As a result, this article is dependent on certain factual assumptions, assumptions for which evidence cannot always be provided.
