Stoics should try to avoid the "moralistic dualism" identified in this article:

US Invades Iraq: No Ends Justify Means of Fractious War - Rebublicons.

"Obviously there were more dimensions in the elevation of enmity toward the US, but to the predominantly Saudi recruits who hijacked planes and martyred themselves against their unholy one, the presence of evil within their holy land was a sufficient proof of the goodness of their jihad. The ends of repelling evil justified their means."