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BackgroundThe repeated use of prohibited chemical weapons in the Syrian conflict poses serious health, humanitarian, and security threats to civilians, healthcare personnel, and first responders. Moreover, the use of chemical weapons constitutes a clear and egregious violation of international law—likely amounting to a war crime—for which continued impunity is setting a dangerous precedent in relation to current and future conflicts. This debate article calls upon concerned states, organizations, and individuals to respond urgently and unequivocally to this serious breach of international legal and humanitarian norms.Main BodyBased on health, humanitarian, and legal findings, this article calls for concrete action to: 1) reduce the risk of chemical weapons being used in current and future conflicts; 2) review and support the preparedness equipment and antidote supplies of first responders, humanitarian organizations, and military forces operating in Syria; 3) support international mechanisms for monitoring and enforcing the prohibition on chemical weapons, including through criminal accountability; 4) support civilian victims of chemical weapons attacks, including refugees; and 5) re-commit to the complete elimination of chemical weapons in compliance with the Chemical Weapons Convention (1993), a comprehensive treaty that bans chemical weapons and requires their complete destruction.ConclusionAll involved states and organizations should take urgent steps to ensure the protection of the most vulnerable victims of conflict, including victims of chemical weapons attacks in Syria, and to reinforce international law in the face of such serious violations.

Violence against aid workers seeking to bring assistance and protection to vulnerable people amid ongoing armed conflicts, disasters or other crises has fuelled growing concern over how to protect the humanitarian mission. Based on semi-structured interviews conducted with 118 practitioners involved in humanitarian operations and security management, this article considers three under-analysed prongs of grappling with humanitarian insecurity. The first three sections, in turn, examine the pursuit of accountability at both the domestic and international levels, public advocacy efforts and confidential negotiation. The fourth section links the article’s assessment of these three modes of responding to humanitarian insecurity to the broader discourse on security management in the humanitarian sector. Specifically, this section revisits and reimagines the security triangle, a framework that has played an influential role in shaping discourse on security management in humanitarian operations. The final section offers concluding remarks.