The Future of Chemical Weapons: Implications from the Syrian Civil War

Abstract

With chemical weapons (CW) use in Syria raising questions about the health of the CW norm, this article analyzes whether the Syrian case will lead to further proliferation and use of chemical weapons by states. We examine the use of chemical weapons at Ghouta in 2013 and on the Hama Plains in 2014 and find that: first, chemical weapons have demonstrated limited military utility in Syria, either tactically or as a tool of civilian victimization; second, the costs of use have been repeatedly demonstrated by the international reaction to their use; and third, the use of sarin—a nerve agent—has attracted a stronger international response than the use of chlorine, a less lethal agent. Consequently, we conclude that the Syrian case is unlikely to lead to significant proliferation and use of chemical weapons; any that does occur is most likely to involve states already outside the CW norm.